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PageSpeed Insights
PageSpeed Insights
This site uses cookies from Google to deliver its services and to analyze traffic.
Report from Feb 17, 2025, 8:00:27 AM
Discover what your real users are experiencing
Core Web Vitals Assessment: Failed
Largest Contentful Paint (LCP)
2.6 s
Page LoadsGood (≤ 2.5 s)73%Needs Improvement (2.5 s - 4 s)16%Poor (> 4 s)11%75th Percentile - 2.6 sCore Web Vital
Interaction to Next Paint (INP)
280 ms
Page LoadsGood (≤ 200 ms)61%Needs Improvement (200 ms - 500 ms)28%Poor (> 500 ms)11%75th Percentile - 280 msCore Web Vital
Cumulative Layout Shift (CLS)
0.03
Page LoadsGood (≤ 0.1)86%Needs Improvement (0.1 - 0.25)9%Poor (> 0.25)5%75th Percentile - 0.03Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
2 s
Page LoadsGood (≤ 1.8 s)68%Needs Improvement (1.8 s - 3 s)22%Poor (> 3 s)10%75th Percentile - 2 s 
Time to First Byte (TTFB)
1.2 s
Page LoadsGood (≤ 0.8 s)54%Needs Improvement (0.8 s - 1.8 s)36%Poor (> 1.8 s)10%75th Percentile - 1.2 sExperimental
Latest 28-day collection period
Various mobile devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Core Web Vitals Assessment: Failed
Largest Contentful Paint (LCP)
2.6 s
Page LoadsGood (≤ 2.5 s)73%Needs Improvement (2.5 s - 4 s)20%Poor (> 4 s)7%75th Percentile - 2.6 sCore Web Vital
Interaction to Next Paint (INP)
335 ms
Page LoadsGood (≤ 200 ms)61%Needs Improvement (200 ms - 500 ms)22%Poor (> 500 ms)17%75th Percentile - 335 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (≤ 0.1)92%Needs Improvement (0.1 - 0.25)6%Poor (> 0.25)2%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.8 s
Page LoadsGood (≤ 1.8 s)74%Needs Improvement (1.8 s - 3 s)18%Poor (> 3 s)8%75th Percentile - 1.8 s 
Time to First Byte (TTFB)
1.2 s
Page LoadsGood (≤ 0.8 s)48%Needs Improvement (0.8 s - 1.8 s)42%Poor (> 1.8 s)10%75th Percentile - 1.2 sExperimental
Latest 28-day collection period
Various mobile devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues
39
Performance
89
Accessibility
79
Best Practices
100
SEO
39
Performance
89
Accessibility
79
Best Practices
100
SEO
39 FCP+3LCP+5TBT+2CLS+25SI+3 Performance
Values are estimated and may vary. The performance score is calculated directly from these metrics.See calculator.
0–49 50–89 90–100
Final Screenshot
Metrics
First Contentful Paint
3.5 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric.
Largest Contentful Paint
5.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Total Blocking Time
2,010 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric.
Cumulative Layout Shift
0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.
Speed Index
7.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
  • Captured at Feb 17, 2025, 8:00 AM UTC
  • Emulated Moto G Power with Lighthouse 12.2.3
    Unthrottled CPU/Memory Power: 338 CPU throttling: 1.2x slowdown (Simulated) Screen emulation: 412x823, DPR 1.75 Axe version: 4.10.2
  • Single page session
    This data is taken from a single page session, as opposed to field data summarizing many sessions.
  • Initial page load
  • Slow 4G throttling
    Network throttling: 150 ms TCP RTT, 1,638.4 kb/s throughput (Simulated) Browser location: North America
  • Using HeadlessChromium 133.0.6943.53 with lr
    User agent (network): "Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36"
Screenshot
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Show audits relevant to:
Diagnostics
Minimize main-thread work 9.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread workTBT
Category
Time Spent
Script Evaluation
6,169 ms
Style & Layout
1,155 ms
Other
911 ms
Garbage Collection
436 ms
Script Parsing & Compilation
308 ms
Rendering
249 ms
Parse HTML & CSS
112 ms
Reduce the impact of third-party code Third-party code blocked the main thread for 2,040 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.TBT
Third-Party
Transfer Size
Main-Thread Blocking Time
Booking.com
content
4,504 KiB
1,092 ms
…js/client.cd422f95.js
(cf.bstatic.com)
277 KiB
870 ms
…mobile/cross-sell_loader.js?ic=60043562
(cf.bstatic.com)
1 KiB
108 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
41 KiB
60 ms
…js/node_modu….231b029b.js
(cf.bstatic.com)
2 KiB
32 ms
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
2 KiB
12 ms
…core-deps-inlinedet_cloudfront_sd/97754f5….js
(cf.bstatic.com)
30 KiB
6 ms
…mobile/en-gb_cross-sell.ceb5c40.js
(xx.bstatic.com)
93 KiB
1 ms
…customer/cookie-banner.min.js
(cf.bstatic.com)
5 KiB
1 ms
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
158 KiB
0 ms
…js/remoteEntry.073a8498.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.9d1c2e5b.client.js
(cf.bstatic.com)
9 KiB
0 ms
…js/remoteEntry.db477c45.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.b87cd2fb.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.2d8a7d3e.client.js
(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.6917f40a.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.11b850c0.client.js
(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.3961dfd5.client.js
(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.f739b58b.client.js
(cf.bstatic.com)
8 KiB
0 ms
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
201 KiB
0 ms
…max1024x768/154….webp?k=847c6d1…&o=
(cf.bstatic.com)
163 KiB
0 ms
…max1024x768/283….webp?k=b861d0f…&o=
(cf.bstatic.com)
143 KiB
0 ms
…js/22e5ddc2.df620328.chunk.js
(cf.bstatic.com)
142 KiB
0 ms
…max1024x768/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
140 KiB
0 ms
…max1024x768/280….webp?k=d5b9f77…&o=
(cf.bstatic.com)
137 KiB
0 ms
…max1024x768/611….webp?k=4db7bea…&o=
(cf.bstatic.com)
132 KiB
0 ms
…490x871/330….webp?k=6da89f4…&o=
(cf.bstatic.com)
114 KiB
0 ms
…490x871/330….webp?k=12ed20c…&o=
(cf.bstatic.com)
93 KiB
0 ms
…490x871/330….webp?k=f524b73…&o=
(cf.bstatic.com)
87 KiB
0 ms
…490x871/330….webp?k=0410769…&o=
(cf.bstatic.com)
85 KiB
0 ms
…490x871/330….webp?k=291f842…&o=
(cf.bstatic.com)
85 KiB
0 ms
…max1024x768/132….webp?k=f9cd304…&o=
(cf.bstatic.com)
84 KiB
0 ms
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
75 KiB
0 ms
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
74 KiB
0 ms
…max1024x768/126….webp?k=46a8a94…&o=
(cf.bstatic.com)
70 KiB
0 ms
…max1024x768/178….webp?k=6c9cfca…&o=
(cf.bstatic.com)
68 KiB
0 ms
…490x871/329….webp?k=c59fc24…&o=
(cf.bstatic.com)
65 KiB
0 ms
…490x871/330….webp?k=772ce28…&o=
(cf.bstatic.com)
64 KiB
0 ms
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
62 KiB
0 ms
…media/bh_aw_cpg_main_image.b4347622.png
(cf.bstatic.com)
62 KiB
0 ms
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
53 KiB
0 ms
…core_cloudfront_sd.iq_ltr/99fc054….css
(cf.bstatic.com)
53 KiB
0 ms
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
50 KiB
0 ms
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
49 KiB
0 ms
…490x871/330….webp?k=33eb4ee…&o=
(cf.bstatic.com)
48 KiB
0 ms
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
48 KiB
0 ms
…js/ef191925.22a9a9d0.chunk.js
(cf.bstatic.com)
45 KiB
0 ms
…illustrat…/GeniusGen…@2x.png
(t-cf.bstatic.com)
45 KiB
0 ms
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
42 KiB
0 ms
…490x871/330….webp?k=cda71e8…&o=
(cf.bstatic.com)
41 KiB
0 ms
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
41 KiB
0 ms
…lp_cloudfront_sd/3de90f6….js
(cf.bstatic.com)
39 KiB
0 ms
…searchresults_no_filters_cloudfront_sd.iq_ltr/3cf4158….css
(cf.bstatic.com)
39 KiB
0 ms
…searchresults_cloudfront_sd/ff4645a….js
(cf.bstatic.com)
38 KiB
0 ms
…mobile/cross-sell.ffa6e2e.css
(xx.bstatic.com)
37 KiB
0 ms
…js/b4bfc4cb.b5abfb13.chunk.js
(cf.bstatic.com)
36 KiB
0 ms
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
33 KiB
0 ms
…css/client.732293fa.css
(cf.bstatic.com)
33 KiB
0 ms
…js/7e8161ba.19a6aa6f.chunk.js
(cf.bstatic.com)
33 KiB
0 ms
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
32 KiB
0 ms
…490x871/330….webp?k=6c2cb21…&o=
(cf.bstatic.com)
31 KiB
0 ms
…js/b37e9879.41776dea.chunk.js
(cf.bstatic.com)
23 KiB
0 ms
…js/8067d7e4.33f6bb11.chunk.js
(cf.bstatic.com)
22 KiB
0 ms
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
22 KiB
0 ms
…app_cloudfront_sd/8292575….js
(cf.bstatic.com)
21 KiB
0 ms
…300x240/140….jpg?k=5a6b195…&o=
(cf.bstatic.com)
21 KiB
0 ms
…300x240/140….jpg?k=39782c8…&o=
(cf.bstatic.com)
20 KiB
0 ms
…300x240/140….jpg?k=9933865…&o=
(cf.bstatic.com)
20 KiB
0 ms
…js/95a17449.b83d3688.chunk.js
(cf.bstatic.com)
19 KiB
0 ms
…illustrations-traveller/TripsGlobe.png
(t-cf.bstatic.com)
19 KiB
0 ms
…300x240/140….jpg?k=6894b31…&o=
(cf.bstatic.com)
19 KiB
0 ms
…300x240/140….jpg?k=ad02b17…&o=
(cf.bstatic.com)
19 KiB
0 ms
…263x210/976877.jpg?k=2aab282…&o=
(r-xx.bstatic.com)
18 KiB
0 ms
…263x210/977409.jpg?k=82c14f9…&o=
(r-xx.bstatic.com)
17 KiB
0 ms
…300x240/140….jpg?k=12ea3fa…&o=
(cf.bstatic.com)
17 KiB
0 ms
…300x240/140….jpg?k=4c8a96e…&o=
(cf.bstatic.com)
17 KiB
0 ms
…square240/607….jpg?k=af6a8b9…&o=
(cf.bstatic.com)
17 KiB
0 ms
…263x210/977388.jpg?k=4c9c542…&o=
(r-xx.bstatic.com)
17 KiB
0 ms
…300x240/140….jpg?k=1496051…&o=
(cf.bstatic.com)
17 KiB
0 ms
…square240/613….jpg?k=39d7a1b…&o=
(cf.bstatic.com)
16 KiB
0 ms
…300x240/140….jpg?k=4084189…&o=
(cf.bstatic.com)
16 KiB
0 ms
…300x240/140….jpg?k=f77225b…&o=
(cf.bstatic.com)
16 KiB
0 ms
…263x210/976919.jpg?k=b4d2dd3…&o=
(q-xx.bstatic.com)
16 KiB
0 ms
…square240/470….jpg?k=e34c755…&o=
(cf.bstatic.com)
15 KiB
0 ms
…263x210/976708.jpg?k=cb62481…&o=
(r-xx.bstatic.com)
15 KiB
0 ms
…square240/632….jpg?k=df3410d…&o=
(cf.bstatic.com)
15 KiB
0 ms
…square240/343….jpg?k=8fb3b36…&o=
(cf.bstatic.com)
15 KiB
0 ms
…300x240/140….jpg?k=1fa8b77…&o=
(cf.bstatic.com)
14 KiB
0 ms
…square240/484….jpg?k=9bd9a22…&o=
(cf.bstatic.com)
14 KiB
0 ms
…263x210/977381.jpg?k=ab236c5…&o=
(q-xx.bstatic.com)
13 KiB
0 ms
…263x210/977437.jpg?k=0e8e510…&o=
(q-xx.bstatic.com)
13 KiB
0 ms
…js/09fb2abd.65a9febf.chunk.js
(cf.bstatic.com)
12 KiB
0 ms
…js/0a098284.e848f476.chunk.js
(cf.bstatic.com)
12 KiB
0 ms
…263x210/976884.jpg?k=00a3546…&o=
(r-xx.bstatic.com)
12 KiB
0 ms
…square240/644….jpg?k=f28c61f…&o=
(cf.bstatic.com)
11 KiB
0 ms
…illustrations-traveller/FreeCancellation.png
(t-cf.bstatic.com)
11 KiB
0 ms
…js/27bbaa9c.8b72ff1e.chunk.js
(cf.bstatic.com)
11 KiB
0 ms
…js/ebf8c3e3.fe641b24.chunk.js
(cf.bstatic.com)
9 KiB
0 ms
…263x210/977423.jpg?k=0193baf…&o=
(r-xx.bstatic.com)
9 KiB
0 ms
…js/remoteEntry.cd1959a3.client.js
(cf.bstatic.com)
9 KiB
0 ms
…263x210/689617.jpg?k=edf8899…&o=
(q-xx.bstatic.com)
9 KiB
0 ms
…square240/341….jpg?k=416e572…&o=
(cf.bstatic.com)
8 KiB
0 ms
…js/index_cloudfront_sd.js
(cf.bstatic.com)
8 KiB
0 ms
…js/97a643cd.9c1e7d4b.chunk.js
(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.edd37f33.client.js
(cf.bstatic.com)
8 KiB
0 ms
…core_critical_cloudfront_sd.iq_ltr/7a035c8….css
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.beedbe6a.client.js
(cf.bstatic.com)
7 KiB
0 ms
…index_cloudfront_sd.iq_ltr/e5aeecc….css
(cf.bstatic.com)
7 KiB
0 ms
…js/31e40d2f.121fcc22.chunk.js
(cf.bstatic.com)
6 KiB
0 ms
…app_cloudfront_sd.iq_ltr/6ede3d5….css
(cf.bstatic.com)
6 KiB
0 ms
…booking-app-logo-128/8c0a29a….png
(cf.bstatic.com)
6 KiB
0 ms
…css/22e5ddc2.5d849b9d.chunk.css
(cf.bstatic.com)
5 KiB
0 ms
…300x240/140….jpg?k=4b99c21…&o=
(cf.bstatic.com)
5 KiB
0 ms
…128x128/420….jpeg?k=08ce7a4…&o=
(q-xx.bstatic.com)
5 KiB
0 ms
…iphone_app_icon/6a9bd9c….png
(cf.bstatic.com)
5 KiB
0 ms
…css/ddf740c7.79134fd2.chunk.css
(cf.bstatic.com)
4 KiB
0 ms
…et_cloudfront_sd/a5c838d….js
(cf.bstatic.com)
4 KiB
0 ms
…illustrations-traveller/CustomerSupport.png
(t-cf.bstatic.com)
4 KiB
0 ms
…index_sync_cloudfront_sd/ecc4502….js
(cf.bstatic.com)
4 KiB
0 ms
…js/36086793.a456df3d.chunk.js
(cf.bstatic.com)
4 KiB
0 ms
…css/5aeeadf2.4c678ae6.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…error_catcher_bec_cloudfront_sd/c40c556….js
(cf.bstatic.com)
3 KiB
0 ms
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/b9a82cb8.8d31da0e.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/f624ebdb.b2ef7e74.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/282e5b08.1b7e4e45.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…css/5638344d.fcc5cfb6.chunk.css
(cf.bstatic.com)
3 KiB
0 ms
…iq_m_type_overrides_cloudfront_sd.iq_ltr/cf628f3….css
(cf.bstatic.com)
3 KiB
0 ms
…lazy_load_images_cloudfront_sd/c823613….js
(cf.bstatic.com)
3 KiB
0 ms
…css/d9560671.eaed1c71.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…loader_db/2ba7cff….gif
(cf.bstatic.com)
2 KiB
0 ms
…js/ce4afa91.ed717715.chunk.js
(cf.bstatic.com)
2 KiB
0 ms
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
2 KiB
0 ms
…js/f41dcaf5.cbd24a1b.chunk.js
(cf.bstatic.com)
2 KiB
0 ms
…css/b37e9879.a10f482f.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…css/ef191925.100c8bd2.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…css/b4bfc4cb.8d4e3d87.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…index_async_cloudfront_sd/ae57c29….js
(cf.bstatic.com)
2 KiB
0 ms
…css/97a643cd.b8649497.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…js/17154553.6572ed9a.chunk.js
(cf.bstatic.com)
2 KiB
0 ms
…css/7e8161ba.5c9046bb.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…css/2e2b58a0.4b5741f8.chunk.css
(cf.bstatic.com)
2 KiB
0 ms
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…images-flags/Gb@3x.png
(t-cf.bstatic.com)
1 KiB
0 ms
…js/node_modu….67aa5d77.js
(cf.bstatic.com)
1 KiB
0 ms
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…js/node_modu….6473a23f.js
(cf.bstatic.com)
1 KiB
0 ms
…js/63bff8e9.92d79f49.chunk.js
(cf.bstatic.com)
1 KiB
0 ms
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/17154553.ff247ba0.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…crossorigin_check_cloudfront_sd/2454015….js
(cf.bstatic.com)
1 KiB
0 ms
Google Tag Manager
tag-manager
845 KiB
637 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
137 KiB
333 ms
/gtag/js?id=…
(www.googletagmanager.com)
126 KiB
62 ms
/gtag/destination?id=…
(www.googletagmanager.com)
98 KiB
56 ms
/gtag/destination?id=…
(www.googletagmanager.com)
106 KiB
44 ms
/gtag/destination?id=…
(www.googletagmanager.com)
89 KiB
41 ms
/gtag/destination?id=…
(www.googletagmanager.com)
95 KiB
36 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
94 KiB
33 ms
/gtag/destination?id=…
(www.googletagmanager.com)
98 KiB
32 ms
…5230/sw_iframe.html?origin=https%3A%2F%2Fwww.booking.com
(www.googletagmanager.com)
2 KiB
0 ms
awswaf.com
375 KiB
244 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
1 KiB
244 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
364 KiB
0 ms
…a18a4859af9c/telemetry
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
9 KiB
0 ms
…a18a4859af9c/verify
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
1 KiB
0 ms
Google/Doubleclick Ads
ad
312 KiB
65 ms
…m202…/pubads_impl.js?cb=31090403
(securepubads.g.doubleclick.net)
161 KiB
65 ms
…rul/106…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…rul/973…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…rul/975…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…topics/topics_frame.html
(securepubads.g.doubleclick.net)
29 KiB
0 ms
…rul/activityi;fledge=1;src=4228414;type=views;cat=views;ord=819…;npa=0;auiddc=197….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;u11=-1;u12=-1;u13=0;u14=-1;u15=en
(td.doubleclick.net)
1 KiB
0 ms
…rul/973…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…rul/975…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…rul/988…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…ga/rul?tid=…
(td.doubleclick.net)
1 KiB
0 ms
…rul/988…?random=…
(td.doubleclick.net)
1 KiB
0 ms
…html/container.html
(29b9e534d414af166d9b676fd71876c3.safeframe.googlesyndication.com)
4 KiB
0 ms
…js/gpt.js
(securepubads.g.doubleclick.net)
34 KiB
0 ms
…m202…/gpt
(securepubads.g.doubleclick.net)
24 KiB
0 ms
/bg/bHuCxueCF….js
(pagead2.googlesyndication.com)
21 KiB
0 ms
…viewthrou…/106…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
…conversion/988…?random=…
(www.googleadservices.com)
3 KiB
0 ms
…viewthrou…/975…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
…viewthrou…/988…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
…viewthrou…/975…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
…viewthrou…/973…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
…viewthrou…/973…?random=…
(googleads.g.doubleclick.net)
3 KiB
0 ms
/activity;register_…=1;src=4228414;type=views;cat=views;ord=819…;npa=0;auiddc=197….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;u11=-1;u12=-1;u13=0;u14=-
(ad.doubleclick.net)
2 KiB
0 ms
…viewthrou…/988…?random=…
(googleads.g.doubleclick.net)
2 KiB
0 ms
/activity;src=4228414;type=views;cat=views;ord=819…;npa=0;auiddc=197….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;….173…;u1=-1;u2=;u3=3;u4=304142;u5=USD;u6=-1;u7=-1;u9=-1;u10=-1;u11=-1;u12=-1;u13=0;u14=-1;u15=en-gb;u16=-1;u17
(ad.doubleclick.net)
1 KiB
0 ms
/gampad/ads?pvsid=…
(securepubads.g.doubleclick.net)
1 KiB
0 ms
/gampad/ads?pvsid=…
(securepubads.g.doubleclick.net)
1 KiB
0 ms
https://www3.doubleclick.net
1 KiB
0 ms
…106…/value=1.00&guid=ON&script=0&label=undefined
(googleads.g.doubleclick.net)
1 KiB
0 ms
…z/src=4228414;type=views;cat=views;ord=819…;npa=0;auiddc=*;u1=…
(adservice.google.com)
1 KiB
0 ms
/pagead/ping?e=4&d=Cg-CAQwI0…
(pagead2.googlesyndication.com)
0 KiB
0 ms
/pagead/sodar?id=sodar2&v=232&li=gpt_m202…&jk=398…&rc=
(pagead2.googlesyndication.com)
0 KiB
0 ms
/g/collect?v=…
(stats.g.doubleclick.net)
0 KiB
0 ms
Other Google APIs/SDKs
utility
93 KiB
0 ms
…api2/aframe
(www.google.com)
2 KiB
0 ms
/gsi/client
(accounts.google.com)
86 KiB
0 ms
/gsi/style
(accounts.google.com)
1 KiB
0 ms
…1p-user-list/106…?random=…
(www.google.com)
1 KiB
0 ms
…1p-user-list/973…?random=…
(www.google.com)
1 KiB
0 ms
…1p-user-list/973…?random=…
(www.google.com)
1 KiB
0 ms
…1p-user-list/975…?random=…
(www.google.com)
1 KiB
0 ms
…1p-user-list/975…?random=…
(www.google.com)
1 KiB
0 ms
…1p-user-list/988…?random=…
(www.google.com)
1 KiB
0 ms
…1p-conversion/988…?random=…
(www.google.com)
1 KiB
0 ms
/ccm/collect?en=…
(www.google.com)
0 KiB
0 ms
adtrafficquality.google
26 KiB
0 ms
…232/runner.html
(ep2.adtrafficquality.google)
6 KiB
0 ms
/getconfig/sodar?sv=200&tid=gpt&tv=m202…&st=env
(ep1.adtrafficquality.google)
13 KiB
0 ms
/sodar/sodar2.js
(ep2.adtrafficquality.google)
7 KiB
0 ms
/pagead/sodar?id=…
(ep1.adtrafficquality.google)
0 KiB
0 ms
/generate_204?LEdSqQ
(ep2.adtrafficquality.google)
0 KiB
0 ms
Optanon
consent-provider
153 KiB
0 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109 KiB
0 ms
…0191998d-4ea0-7a35-bbae-232aa21682f6/en-gb.json
(cdn.cookielaw.org)
27 KiB
0 ms
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
8 KiB
0 ms
…assets/otCommonStyles.css
(cdn.cookielaw.org)
5 KiB
0 ms
…3ea94870-d4b1-483a-b1d2-faf1d982bb31/3ea94870-d4b1-483a-b….json
(cdn.cookielaw.org)
3 KiB
0 ms
…geo/location
(geolocation.onetrust.com)
0 KiB
0 ms
Google Analytics
analytics
30 KiB
0 ms
/analytics.js
(www.google-analytics.com)
21 KiB
0 ms
…ua/ec.js
(www.google-analytics.com)
2 KiB
0 ms
/j/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/j/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/collect?v=…
(www.google-analytics.com)
1 KiB
0 ms
/g/collect?v=…
(analytics.google.com)
1 KiB
0 ms
/g/collect?v=…
(analytics.google.com)
1 KiB
0 ms
Pinterest
social
30 KiB
0 ms
…lib/main.8821a9da.js
(s.pinimg.com)
23 KiB
0 ms
/ct/core.js
(s.pinimg.com)
2 KiB
0 ms
/v3/?event=…
(ct.pinterest.com)
1 KiB
0 ms
/user/?tid=…
(ct.pinterest.com)
1 KiB
0 ms
/user/?event=…
(ct.pinterest.com)
1 KiB
0 ms
/ct.html
(ct.pinterest.com)
1 KiB
0 ms
/v3/?tid=…
(ct.pinterest.com)
1 KiB
0 ms
Bing Ads
ad
21 KiB
0 ms
/bat.js
(bat.bing.com)
15 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
/action/0?ti=…
(bat.bing.com)
1 KiB
0 ms
…action/15005356.js
(bat.bing.com)
1 KiB
0 ms
/actionp/0?ti=…
(bat.bing.com)
0 KiB
0 ms
/actionp/0?ti=…
(bat.bing.com)
0 KiB
0 ms
/actionp/0?ti=…
(bat.bing.com)
0 KiB
0 ms
/actionp/0?ti=…
(bat.bing.com)
0 KiB
0 ms
/actionp/0?ti=…
(bat.bing.com)
0 KiB
0 ms
Yahoo! JAPAN Ads
ad
11 KiB
0 ms
…cv/ytag.js
(s.yimg.jp)
11 KiB
0 ms
google.com
2 KiB
0 ms
/about/enterprise/
(marketingplatform.google.com)
2 KiB
0 ms
RTB House AdPilot
ad
1 KiB
0 ms
/tags?type=…
(creativecdn.com)
1 KiB
0 ms
/tags?type=…
(creativecdn.com)
0 KiB
0 ms
Google AMP
analytics
1 KiB
0 ms
/v1/publisher:getClientId?key=AIzaSyA65…
(ampcid.google.com)
1 KiB
0 ms
Reduce JavaScript execution time 5.6 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.TBT
URL
Total CPU Time
Script Evaluation
Script Parse
Booking.com
content
4,211 ms
3,289 ms
52 ms
…js/client.cd422f95.js
(cf.bstatic.com)
3,501 ms
2,727 ms
29 ms
…mobile/cross-sell_loader.js?ic=60043562
(cf.bstatic.com)
181 ms
156 ms
0 ms
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
179 ms
74 ms
13 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
110 ms
107 ms
3 ms
…mobile/en-gb_cross-sell.ceb5c40.js
(xx.bstatic.com)
97 ms
83 ms
6 ms
…js/node_modu….231b029b.js
(cf.bstatic.com)
82 ms
81 ms
0 ms
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
62 ms
61 ms
0 ms
Google Tag Manager
tag-manager
1,213 ms
966 ms
52 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
540 ms
344 ms
11 ms
/gtag/js?id=…
(www.googletagmanager.com)
114 ms
105 ms
8 ms
/gtag/destination?id=…
(www.googletagmanager.com)
109 ms
102 ms
6 ms
/gtag/destination?id=…
(www.googletagmanager.com)
99 ms
91 ms
6 ms
/gtag/destination?id=…
(www.googletagmanager.com)
94 ms
87 ms
5 ms
/gtag/destination?id=…
(www.googletagmanager.com)
88 ms
82 ms
5 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
85 ms
78 ms
6 ms
/gtag/destination?id=…
(www.googletagmanager.com)
85 ms
77 ms
6 ms
booking.com
1st party
1,168 ms
101 ms
22 ms
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
1,168 ms
101 ms
22 ms
Unattributable
1,088 ms
448 ms
0 ms
Unattributable
1,088 ms
448 ms
0 ms
awswaf.com
492 ms
444 ms
21 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
492 ms
444 ms
21 ms
Google/Doubleclick Ads
ad
248 ms
224 ms
11 ms
…m202…/pubads_impl.js?cb=31090403
(securepubads.g.doubleclick.net)
248 ms
224 ms
11 ms
Largest Contentful Paint element 5,320 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint elementLCP
Element
Find your next stay
<h1 id="form_search_h1" class="b-no-tap-highlight " style="">
Phase
% of LCP
Timing
TTFB
11%
600 ms
Load Delay
0%
0 ms
Load Time
0%
0 ms
Render Delay
89%
4,720 ms
Eliminate render-blocking resources Potential savings of 1,010 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
32.8 KiB
300 ms
…css/client.732293fa.css
(cf.bstatic.com)
32.8 KiB
300 ms
Avoid multiple page redirects Potential savings of 770 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.LCPFCP
URL
Time Spent
booking.com
1st party
770 ms
https://www.booking.com
770 ms
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
0 ms
Reduce unused CSS Potential savings of 112 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
120.1 KiB
111.8 KiB
…core_cloudfront_sd.iq_ltr/99fc054….css
(cf.bstatic.com)
51.9 KiB
49.4 KiB
…mobile/cross-sell.ffa6e2e.css
(xx.bstatic.com)
36.2 KiB
34.3 KiB
…css/client.732293fa.css
(cf.bstatic.com)
32.0 KiB
28.1 KiB
Reduce unused JavaScript Potential savings of 1,798 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
1,557.7 KiB
1,023.4 KiB
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
200.5 KiB
185.5 KiB
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
156.9 KiB
122.5 KiB
…js/client.cd422f95.js
(cf.bstatic.com)
276.2 KiB
121.2 KiB
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
52.7 KiB
52.3 KiB
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
72.9 KiB
49.1 KiB
…js/22e5ddc2.df620328.chunk.js
(cf.bstatic.com)
141.2 KiB
47.0 KiB
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
47.2 KiB
46.9 KiB
…mobile/en-gb_cross-sell.ceb5c40.js
(xx.bstatic.com)
91.9 KiB
45.5 KiB
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
49.2 KiB
43.5 KiB
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
74.2 KiB
35.4 KiB
…js/ef191925.22a9a9d0.chunk.js
(cf.bstatic.com)
44.5 KiB
35.1 KiB
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
61.5 KiB
33.3 KiB
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
32.6 KiB
30.2 KiB
…js/b4bfc4cb.b5abfb13.chunk.js
(cf.bstatic.com)
35.4 KiB
28.3 KiB
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
40.5 KiB
27.6 KiB
…lp_cloudfront_sd/3de90f6….js
(cf.bstatic.com)
38.6 KiB
27.0 KiB
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
48.7 KiB
25.6 KiB
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
31.4 KiB
25.4 KiB
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
21.6 KiB
21.1 KiB
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
40.1 KiB
20.7 KiB
Google Tag Manager
tag-manager
834.1 KiB
367.6 KiB
/gtag/js?id=…
(www.googletagmanager.com)
125.4 KiB
50.7 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
93.8 KiB
48.9 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
96.9 KiB
48.6 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
96.8 KiB
48.5 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
104.6 KiB
47.9 KiB
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
92.6 KiB
43.5 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
87.9 KiB
42.7 KiB
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
136.1 KiB
36.9 KiB
awswaf.com
363.7 KiB
185.1 KiB
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
363.7 KiB
185.1 KiB
Google/Doubleclick Ads
ad
159.8 KiB
88.2 KiB
…m202…/pubads_impl.js?cb=31090403
(securepubads.g.doubleclick.net)
159.8 KiB
88.2 KiB
Optanon
consent-provider
108.2 KiB
70.8 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
108.2 KiB
70.8 KiB
Other Google APIs/SDKs
utility
84.9 KiB
62.9 KiB
/gsi/client
(accounts.google.com)
84.9 KiB
62.9 KiB
Avoid an excessive DOM size 3,660 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn how to avoid an excessive DOM size.TBT
Statistic
Element
Value
Total DOM Elements
3,660
Maximum DOM Depth
Exceptional
<div class="ac4a7896c7">
24
Maximum Child Elements
body#b2indexPage
<body id="b2indexPage" class="bookings2 index colada en b_lang_en new_cta not_webview supportsfixed seve…" data-bui-theme="traveller_ex-light">
153
Image elements do not have explicit width and height
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensionsCLS
URL
Booking.com
content
div.c82435a4b8 > a.a83ed08757 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/psb/capla/static/js/../../static/media/bh_aw_cpg_ma…" role="presentation" loading="lazy">
…media/bh_aw_cpg_main_image.b4347622.png
(cf.bstatic.com)
Serve images in next-gen formats Potential savings of 55 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
105.4 KiB
55.1 KiB
div.c82435a4b8 > a.a83ed08757 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/psb/capla/static/js/../../static/media/bh_aw_cpg_ma…" role="presentation" loading="lazy">
…media/bh_aw_cpg_main_image.b4347622.png
(cf.bstatic.com)
60.9 KiB
40.5 KiB
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f b1a5e281e7" src="https://t-cf.bstatic.com/design-assets/assets/v3.138.1/illustrations-trave…" srcset="https://t-cf.bstatic.com/design-assets/assets/v3.138.1/illustrations-trave…" alt="" role="presentation" loading="lazy">
…illustrat…/GeniusGen…@2x.png
(t-cf.bstatic.com)
44.5 KiB
14.6 KiB
Serve static assets with an efficient cache policy 82 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
URL
Cache TTL
Transfer Size
Booking.com
content
2,710 KiB
…illustrat…/GeniusGen…@2x.png
(t-cf.bstatic.com)
None
45 KiB
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
None
42 KiB
…illustrations-traveller/TripsGlobe.png
(t-cf.bstatic.com)
None
19 KiB
…illustrations-traveller/FreeCancellation.png
(t-cf.bstatic.com)
None
11 KiB
…illustrations-traveller/CustomerSupport.png
(t-cf.bstatic.com)
None
4 KiB
…images-flags/Gb@3x.png
(t-cf.bstatic.com)
None
1 KiB
…mobile/en-gb_cross-sell.ceb5c40.js
(xx.bstatic.com)
7d
93 KiB
…mobile/cross-sell.ffa6e2e.css
(xx.bstatic.com)
7d
37 KiB
…max1024x768/154….webp?k=847c6d1…&o=
(cf.bstatic.com)
30d
163 KiB
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
30d
158 KiB
…max1024x768/283….webp?k=b861d0f…&o=
(cf.bstatic.com)
30d
143 KiB
…max1024x768/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
30d
140 KiB
…max1024x768/280….webp?k=d5b9f77…&o=
(cf.bstatic.com)
30d
137 KiB
…max1024x768/611….webp?k=4db7bea…&o=
(cf.bstatic.com)
30d
132 KiB
…490x871/330….webp?k=6da89f4…&o=
(cf.bstatic.com)
30d
114 KiB
…490x871/330….webp?k=12ed20c…&o=
(cf.bstatic.com)
30d
93 KiB
…490x871/330….webp?k=f524b73…&o=
(cf.bstatic.com)
30d
87 KiB
…490x871/330….webp?k=0410769…&o=
(cf.bstatic.com)
30d
85 KiB
…490x871/330….webp?k=291f842…&o=
(cf.bstatic.com)
30d
85 KiB
…max1024x768/132….webp?k=f9cd304…&o=
(cf.bstatic.com)
30d
84 KiB
…max1024x768/126….webp?k=46a8a94…&o=
(cf.bstatic.com)
30d
70 KiB
…max1024x768/178….webp?k=6c9cfca…&o=
(cf.bstatic.com)
30d
68 KiB
…490x871/329….webp?k=c59fc24…&o=
(cf.bstatic.com)
30d
65 KiB
…490x871/330….webp?k=772ce28…&o=
(cf.bstatic.com)
30d
64 KiB
…core_cloudfront_sd.iq_ltr/99fc054….css
(cf.bstatic.com)
30d
53 KiB
…490x871/330….webp?k=33eb4ee…&o=
(cf.bstatic.com)
30d
48 KiB
…490x871/330….webp?k=cda71e8…&o=
(cf.bstatic.com)
30d
41 KiB
…lp_cloudfront_sd/3de90f6….js
(cf.bstatic.com)
30d
39 KiB
…490x871/330….webp?k=6c2cb21…&o=
(cf.bstatic.com)
30d
31 KiB
…core-deps-inlinedet_cloudfront_sd/97754f5….js
(cf.bstatic.com)
30d
30 KiB
…app_cloudfront_sd/8292575….js
(cf.bstatic.com)
30d
21 KiB
…300x240/140….jpg?k=5a6b195…&o=
(cf.bstatic.com)
30d
21 KiB
…300x240/140….jpg?k=39782c8…&o=
(cf.bstatic.com)
30d
20 KiB
…300x240/140….jpg?k=9933865…&o=
(cf.bstatic.com)
30d
20 KiB
…300x240/140….jpg?k=6894b31…&o=
(cf.bstatic.com)
30d
19 KiB
…300x240/140….jpg?k=ad02b17…&o=
(cf.bstatic.com)
30d
19 KiB
…263x210/976877.jpg?k=2aab282…&o=
(r-xx.bstatic.com)
30d
18 KiB
…263x210/977409.jpg?k=82c14f9…&o=
(r-xx.bstatic.com)
30d
17 KiB
…300x240/140….jpg?k=12ea3fa…&o=
(cf.bstatic.com)
30d
17 KiB
…300x240/140….jpg?k=4c8a96e…&o=
(cf.bstatic.com)
30d
17 KiB
…square240/607….jpg?k=af6a8b9…&o=
(cf.bstatic.com)
30d
17 KiB
…263x210/977388.jpg?k=4c9c542…&o=
(r-xx.bstatic.com)
30d
17 KiB
…300x240/140….jpg?k=1496051…&o=
(cf.bstatic.com)
30d
17 KiB
…square240/613….jpg?k=39d7a1b…&o=
(cf.bstatic.com)
30d
16 KiB
…300x240/140….jpg?k=4084189…&o=
(cf.bstatic.com)
30d
16 KiB
…300x240/140….jpg?k=f77225b…&o=
(cf.bstatic.com)
30d
16 KiB
…263x210/976919.jpg?k=b4d2dd3…&o=
(q-xx.bstatic.com)
30d
16 KiB
…square240/470….jpg?k=e34c755…&o=
(cf.bstatic.com)
30d
15 KiB
…263x210/976708.jpg?k=cb62481…&o=
(r-xx.bstatic.com)
30d
15 KiB
…square240/632….jpg?k=df3410d…&o=
(cf.bstatic.com)
30d
15 KiB
…square240/343….jpg?k=8fb3b36…&o=
(cf.bstatic.com)
30d
15 KiB
…300x240/140….jpg?k=1fa8b77…&o=
(cf.bstatic.com)
30d
14 KiB
…square240/484….jpg?k=9bd9a22…&o=
(cf.bstatic.com)
30d
14 KiB
…263x210/977381.jpg?k=ab236c5…&o=
(q-xx.bstatic.com)
30d
13 KiB
…263x210/977437.jpg?k=0e8e510…&o=
(q-xx.bstatic.com)
30d
13 KiB
…263x210/976884.jpg?k=00a3546…&o=
(r-xx.bstatic.com)
30d
12 KiB
…square240/644….jpg?k=f28c61f…&o=
(cf.bstatic.com)
30d
11 KiB
…263x210/977423.jpg?k=0193baf…&o=
(r-xx.bstatic.com)
30d
9 KiB
…263x210/689617.jpg?k=edf8899…&o=
(q-xx.bstatic.com)
30d
9 KiB
…square240/341….jpg?k=416e572…&o=
(cf.bstatic.com)
30d
8 KiB
…js/index_cloudfront_sd.js
(cf.bstatic.com)
30d
8 KiB
…index_cloudfront_sd.iq_ltr/e5aeecc….css
(cf.bstatic.com)
30d
7 KiB
…app_cloudfront_sd.iq_ltr/6ede3d5….css
(cf.bstatic.com)
30d
6 KiB
…booking-app-logo-128/8c0a29a….png
(cf.bstatic.com)
30d
6 KiB
…300x240/140….jpg?k=4b99c21…&o=
(cf.bstatic.com)
30d
5 KiB
…128x128/420….jpeg?k=08ce7a4…&o=
(q-xx.bstatic.com)
30d
5 KiB
…iphone_app_icon/6a9bd9c….png
(cf.bstatic.com)
30d
5 KiB
…customer/cookie-banner.min.js
(cf.bstatic.com)
30d
5 KiB
…index_sync_cloudfront_sd/ecc4502….js
(cf.bstatic.com)
30d
4 KiB
…error_catcher_bec_cloudfront_sd/c40c556….js
(cf.bstatic.com)
30d
3 KiB
…iq_m_type_overrides_cloudfront_sd.iq_ltr/cf628f3….css
(cf.bstatic.com)
30d
3 KiB
…loader_db/2ba7cff….gif
(cf.bstatic.com)
30d
2 KiB
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
30d
2 KiB
…index_async_cloudfront_sd/ae57c29….js
(cf.bstatic.com)
30d
2 KiB
…crossorigin_check_cloudfront_sd/2454015….js
(cf.bstatic.com)
30d
1 KiB
Optanon
consent-provider
118 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
1d
109 KiB
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
1d
8 KiB
Pinterest
social
26 KiB
/ct/core.js
(s.pinimg.com)
2h
2 KiB
…lib/main.8821a9da.js
(s.pinimg.com)
14d
23 KiB
Google Analytics
analytics
23 KiB
…ua/ec.js
(www.google-analytics.com)
1h
2 KiB
/analytics.js
(www.google-analytics.com)
2h
21 KiB
Yahoo! JAPAN Ads
ad
11 KiB
…cv/ytag.js
(s.yimg.jp)
10m
11 KiB
Ensure text remains visible during webfont load
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more about font-display.
URL
Potential Savings
Booking.com
content
50 ms
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
50 ms
Properly size images Potential savings of 1,259 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
1,702.5 KiB
1,259.1 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/154543781.webp?k=847…" alt="" role="presentation" loading="lazy">
…max1024x768/154….webp?k=847c6d1…&o=
(cf.bstatic.com)
162.9 KiB
131.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/283036728.webp?k=b86…" alt="" role="presentation" loading="lazy">
…max1024x768/283….webp?k=b861d0f…&o=
(cf.bstatic.com)
142.4 KiB
112.5 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/187855604.webp?k=0ab…" alt="" role="presentation" loading="lazy">
…max1024x768/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
139.2 KiB
112.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/280950287.webp?k=d5b…" alt="" role="presentation" loading="lazy">
…max1024x768/280….webp?k=d5b9f77…&o=
(cf.bstatic.com)
136.6 KiB
108.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/611064739.webp?k=4db…" alt="" role="presentation" loading="lazy">
…max1024x768/611….webp?k=4db7bea…&o=
(cf.bstatic.com)
131.4 KiB
99.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330218941.webp?k=6da89f…" role="presentation" loading="lazy">
…490x871/330….webp?k=6da89f4…&o=
(cf.bstatic.com)
113.8 KiB
76.7 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/132452060.webp?k=f9c…" alt="" role="presentation" loading="lazy">
…max1024x768/132….webp?k=f9cd304…&o=
(cf.bstatic.com)
83.6 KiB
66.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330242405.webp?k=12ed20…" role="presentation" loading="lazy">
…490x871/330….webp?k=12ed20c…&o=
(cf.bstatic.com)
92.4 KiB
62.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330217393.webp?k=f524b7…" role="presentation" loading="lazy">
…490x871/330….webp?k=f524b73…&o=
(cf.bstatic.com)
86.9 KiB
58.5 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330243165.webp?k=041076…" role="presentation" loading="lazy">
…490x871/330….webp?k=0410769…&o=
(cf.bstatic.com)
84.3 KiB
56.8 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330238778.webp?k=291f84…" role="presentation" loading="lazy">
…490x871/330….webp?k=291f842…&o=
(cf.bstatic.com)
84.2 KiB
56.7 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/126764303.webp?k=46a…" alt="" role="presentation" loading="lazy">
…max1024x768/126….webp?k=46a8a94…&o=
(cf.bstatic.com)
69.5 KiB
54.8 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/hotel/max1024x768/178421525.webp?k=6c9…" alt="" role="presentation" loading="lazy">
…max1024x768/178….webp?k=6c9cfca…&o=
(cf.bstatic.com)
67.7 KiB
54.1 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/329955964.webp?k=c59fc2…" role="presentation" loading="lazy">
…490x871/329….webp?k=c59fc24…&o=
(cf.bstatic.com)
64.3 KiB
43.3 KiB
div.c82435a4b8 > a.a83ed08757 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/psb/capla/static/js/../../static/media/bh_aw_cpg_ma…" role="presentation" loading="lazy">
…media/bh_aw_cpg_main_image.b4347622.png
(cf.bstatic.com)
60.9 KiB
43.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330221486.webp?k=772ce2…" role="presentation" loading="lazy">
…490x871/330….webp?k=772ce28…&o=
(cf.bstatic.com)
63.4 KiB
42.7 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330218232.webp?k=33eb4e…" role="presentation" loading="lazy">
…490x871/330….webp?k=33eb4ee…&o=
(cf.bstatic.com)
47.7 KiB
32.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330216085.webp?k=cda71e…" role="presentation" loading="lazy">
…490x871/330….webp?k=cda71e8…&o=
(cf.bstatic.com)
40.3 KiB
27.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/xphoto/490x871/330237911.webp?k=6c2cb2…" role="presentation" loading="lazy">
…490x871/330….webp?k=6c2cb21…&o=
(cf.bstatic.com)
30.8 KiB
20.8 KiB
Defer offscreen images Potential savings of 5 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to defer offscreen images.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
5.1 KiB
5.1 KiB
Booking
<img src="https://cf.bstatic.com/mobile/images/gta/booking-app-logo-128/8c0a29a0f865…" alt="Booking">
…booking-app-logo-128/8c0a29a….png
(cf.bstatic.com)
5.1 KiB
5.1 KiB
Avoid serving legacy JavaScript to modern browsers Potential savings of 16 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScriptLCPFCP
URL
Potential Savings
Booking.com
content
8.8 KiB
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
8.7 KiB
…core_cloudfront_sd/9420186….js:9:57534
(cf.bstatic.com)
@babel/plugin-transform-classes
…core_cloudfront_sd/9420186….js:43:279368
(cf.bstatic.com)
Object.entries
…core_cloudfront_sd/9420186….js:43:279637
(cf.bstatic.com)
Array.prototype.find
…js/b37e9879.41776dea.chunk.js
(cf.bstatic.com)
0.0 KiB
…js/b37e9879.41776dea.chunk.js:2:67426
(cf.bstatic.com)
@babel/plugin-transform-classes
…js/client.cd422f95.js
(cf.bstatic.com)
0.0 KiB
…js/client.cd422f95.js:2:710884
(cf.bstatic.com)
@babel/plugin-transform-classes
Optanon
consent-provider
6.9 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
6.9 KiB
…202403.2.0/otBannerSdk.js:7:7371
(cdn.cookielaw.org)
Array.prototype.fill
Avoid enormous network payloads Total size was 6,674 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
URL
Transfer Size
Booking.com
content
1,224.1 KiB
…js/client.cd422f95.js
(cf.bstatic.com)
277.0 KiB
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
201.3 KiB
…max1024x768/154….webp?k=847c6d1…&o=
(cf.bstatic.com)
163.4 KiB
…core_cloudfront_sd/9420186….js
(cf.bstatic.com)
157.8 KiB
…max1024x768/283….webp?k=b861d0f…&o=
(cf.bstatic.com)
142.9 KiB
…js/22e5ddc2.df620328.chunk.js
(cf.bstatic.com)
142.0 KiB
…max1024x768/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
139.7 KiB
awswaf.com
364.4 KiB
…a18a4859af9c/challenge.js
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
364.4 KiB
Google/Doubleclick Ads
ad
160.6 KiB
…m202…/pubads_impl.js?cb=31090403
(securepubads.g.doubleclick.net)
160.6 KiB
booking.com
1st party
140.2 KiB
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
140.2 KiB
Avoid long main-thread tasks 20 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasksTBT
URL
Start Time
Duration
Booking.com
content
1,315 ms
…js/client.cd422f95.js
(cf.bstatic.com)
15,318 ms
273 ms
…js/client.cd422f95.js
(cf.bstatic.com)
29,568 ms
168 ms
…mobile/cross-sell_loader.js?ic=60043562
(cf.bstatic.com)
17,868 ms
167 ms
…js/client.cd422f95.js
(cf.bstatic.com)
15,689 ms
160 ms
…js/client.cd422f95.js
(cf.bstatic.com)
15,849 ms
134 ms
…js/client.cd422f95.js
(cf.bstatic.com)
11,701 ms
119 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
19,068 ms
110 ms
…js/client.cd422f95.js
(cf.bstatic.com)
15,591 ms
98 ms
…js/client.cd422f95.js
(cf.bstatic.com)
28,363 ms
86 ms
Google Tag Manager
tag-manager
1,005 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
23,263 ms
217 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
23,047 ms
216 ms
/gtag/js?id=…
(www.googletagmanager.com)
26,780 ms
112 ms
/gtag/destination?id=…
(www.googletagmanager.com)
37,363 ms
106 ms
/gtag/destination?id=…
(www.googletagmanager.com)
33,013 ms
94 ms
/gtag/destination?id=…
(www.googletagmanager.com)
30,763 ms
91 ms
/gtag/destination?id=…
(www.googletagmanager.com)
34,663 ms
86 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
28,280 ms
83 ms
awswaf.com
294 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
20,836 ms
294 ms
booking.com
1st party
121 ms
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
4,786 ms
121 ms
Google/Doubleclick Ads
ad
114 ms
…m202…/pubads_impl.js?cb=31090403
(securepubads.g.doubleclick.net)
29,769 ms
114 ms
Initial server response time was short Root document took 330 ms
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.LCPFCP
URL
Time Spent
booking.com
1st party
330 ms
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
330 ms
User Timing marks and measures 14 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more about User Timing marks.
Name
Type
Start Time
Duration
b-stylesheets
Measure
0.00 ms
880.20 ms
b-fold
Measure
0.00 ms
988.80 ms
b-pre-scripts
Measure
0.00 ms
1,033.00 ms
b-post-scripts
Measure
0.00 ms
1,199.40 ms
TARGETING_PARAMETERS_LATENCY
Measure
3,805.29 ms
1,307.82 ms
TARGETING_PARAMETERS_LATENCY
Measure
3,805.29 ms
1,311.57 ms
REMOTE_TARGETING_REQUESTED
Mark
3,781.15 ms
AD_COMPONENT_CREATED
Mark
3,782.22 ms
REMOTE_TARGETING_REQUESTED
Mark
3,805.29 ms
AD_COMPONENT_CREATED
Mark
3,805.54 ms
REMOTE_TARGETING_SUCCESS
Mark
5,113.10 ms
REMOTE_TARGETING_SUCCESS
Mark
5,116.85 ms
AD_SLOT_REQUESTED
Mark
5,882.90 ms
AD_SLOT_REQUESTED
Mark
5,887.06 ms
Avoid chaining critical requests 11 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn how to avoid chaining critical requests.
Maximum critical path latency: 983.126 ms
Initial Navigation
https://www.booking.com
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k
(www.booking.com)
…customer/cookie-banner.min.js
(cf.bstatic.com)
- 12.9 ms, 4.69 KiB
…css/client.732293fa.css
(cf.bstatic.com)
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
- 46.02 ms, 41.73 KiB
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
- 36.031 ms, 2.86 KiB
…css/17154553.ff247ba0.chunk.css
(cf.bstatic.com)
- 12.544 ms, 1.12 KiB
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
- 37.311 ms, 1.46 KiB
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
- 13.205 ms, 1.38 KiB
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
- 22.156 ms, 1.29 KiB
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
- 12.99 ms, 3.03 KiB
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
- 13.53 ms, 3.13 KiB
…css/22e5ddc2.5d849b9d.chunk.css
(cf.bstatic.com)
- 19.413 ms, 5.41 KiB
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
- 11.842 ms, 1.97 KiB
More information about the performance of your application. These numbers don't directly affect the Performance score.
Passed audits (15)
Show Hide
Minify CSS
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.LCPFCP
Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.LCPFCP
Efficiently encode images
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.LCPFCP
Enable text compression
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.LCPFCP
Preconnect to required origins
Consider adding preconnect or dns-prefetch resource hints to establish early connections to important third-party origins. Learn how to preconnect to required origins.LCPFCP
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more about efficient video formatsLCPFCP
Remove duplicate modules in JavaScript bundles
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity. LCPFCP
Preload Largest Contentful Paint image
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements.LCP
Lazy load third-party resources with facades
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade.TBT
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading.LCP
Avoid large layout shifts
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLSCLS
Uses passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as passive to improve your page's scroll performance. Learn more about adopting passive event listeners.
Avoids document.write()
For users on slow connections, external scripts dynamically injected via document.write() can delay page load by tens of seconds. Learn how to avoid document.write().
Avoid non-composited animations
Animations which are not composited can be janky and increase CLS. Learn how to avoid non-composited animationsCLS
Has a <meta name="viewport"> tag with width or initial-scale
A <meta name="viewport"> not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more about using the viewport meta tag.
89
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
ARIA
[aria-*] attributes do not match their roles
Each ARIA role supports a specific subset of aria-* attributes. Mismatching these invalidates the aria-* attributes. Learn how to match ARIA attributes to their roles.
Failing Elements
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
Save this item to a trip list
<div aria-expanded="false">
[aria-*] attributes do not have valid values
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.
Failing Elements
Romance
<button id="ROMANCE-tab-trigger" data-testid="webcore-filter-carousel-tab-trigger" role="tab" aria-current="page" aria-selected="true" aria-controls="ROMANCE" tabindex="0" type="button" class="a83ed08757 f3441ccb97 ec66406250">
Uses ARIA roles on incompatible elements
Many HTML elements can only be assigned certain ARIA roles. Using ARIA roles where they are not allowed can interfere with the accessibility of the web page. Learn more about ARIA roles.
Failing Elements
Check-in date Mon 17 Feb 2025 Check-out date Tue 18 Feb 2025 Adults 1 2 3 4 5 6…
<form class="b942c4707a a7ab5b4be2" action="https://www.booking.com/searchresults.en-gb.html" method="GET" role="region" aria-label="Search properties" id=":r8:">
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Navigation
Heading elements are not in a sequentially-descending order
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Failing Elements
Book now, pay at the property
<h3 id=":rm:" class="e1eebb6a1e e0a7dcceb5">
These are opportunities to improve keyboard navigation in your application.
Additional items to manually check (10)
Show Hide
Interactive controls are keyboard focusable
Custom interactive controls are keyboard focusable and display a focus indicator. Learn how to make custom controls focusable.
Interactive elements indicate their purpose and state
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn how to decorate interactive elements with affordance hints.
The page has a logical tab order
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn more about logical tab ordering.
Visual order on the page follows DOM order
DOM order matches the visual order, improving navigation for assistive technology. Learn more about DOM and visual ordering.
User focus is not accidentally trapped in a region
A user can tab into and out of any control or region without accidentally trapping their focus. Learn how to avoid focus traps.
The user's focus is directed to new content added to the page
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn how to direct focus to new content.
HTML5 landmark elements are used to improve navigation
Landmark elements (<main>, <nav>, etc.) are used to improve the keyboard navigation of the page for assistive technology. Learn more about landmark elements.
Offscreen content is hidden from assistive technology
Offscreen content is hidden with display: none or aria-hidden=true. Learn how to properly hide offscreen content.
Custom controls have associated labels
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn more about custom controls and labels.
Custom controls have ARIA roles
Custom interactive controls have appropriate ARIA roles. Learn how to add roles to custom controls.
These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Passed audits (26)
Show Hide
[aria-hidden="true"] is not present on the document <body>
Assistive technologies, like screen readers, work inconsistently when aria-hidden="true" is set on the document <body>. Learn how aria-hidden affects the document body.
[role]s have all required [aria-*] attributes
Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn more about roles and required attributes.
Elements with an ARIA [role] that require children to contain a specific [role] have all required children.
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
[role]s are contained by their required parent element
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.
[aria-*] attributes are valid and not misspelled
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
Buttons have an accessible name
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Image elements have [alt] attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the alt attribute.
[user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
button, link, and menuitem elements have accessible names
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.
ARIA attributes are used as specified for the element's role
Some ARIA attributes are only allowed on an element under certain conditions. Learn more about conditional ARIA attributes.
[aria-hidden="true"] elements do not contain focusable descendents
Focusable descendents within an [aria-hidden="true"] element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how aria-hidden affects focusable elements.
Elements use only permitted ARIA attributes
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
[role] values are valid
ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.
Background and foreground colors have a sufficient contrast ratio
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Document has a <title> element
The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
<html> element has a [lang] attribute
If a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the lang attribute.
<html> element has a valid value for its [lang] attribute
Specifying a valid BCP 47 language helps screen readers announce text properly. Learn how to use the lang attribute.
Form elements have associated labels
Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.
Links have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Lists contain only <li> elements and script supporting elements (<script> and <template>).
Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.
List items (<li>) are contained within <ul>, <ol> or <menu> parent elements
Screen readers require list items (<li>) to be contained within a parent <ul>, <ol> or <menu> to be announced properly. Learn more about proper list structure.
Select elements have associated label elements.
Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the select element.
No element has a [tabindex] value greater than 0
A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the tabindex attribute.
Touch targets have sufficient size and spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Deprecated ARIA roles were not used
Deprecated ARIA roles may not be processed correctly by assistive technology. Learn more about deprecated ARIA roles.
Image elements do not have [alt] attributes that are redundant text.
Informative elements should aim for short, descriptive alternative text. Alternative text that is exactly the same as the text adjacent to the link or image is potentially confusing for screen reader users, because the text will be read twice. Learn more about the alt attribute.
Not applicable (27)
Show Hide
[accesskey] values are unique
Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn more about access keys.
Elements with role="dialog" or role="alertdialog" have accessible names.
ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.
ARIA input fields have accessible names
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.
ARIA meter elements have accessible names
When a meter element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name meter elements.
ARIA progressbar elements have accessible names
When a progressbar element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to label progressbar elements.
Elements with the role=text attribute do not have focusable descendents.
Adding role=text around a text node split by markup enables VoiceOver to treat it as one phrase, but the element's focusable descendents will not be announced. Learn more about the role=text attribute.
ARIA toggle fields have accessible names
When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about toggle fields.
ARIA tooltip elements have accessible names
When a tooltip element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name tooltip elements.
ARIA treeitem elements have accessible names
When a treeitem element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about labeling treeitem elements.
The page contains a heading, skip link, or landmark region
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more about bypass blocks.
<dl>'s contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.
Definition list items are wrapped in <dl> elements
Definition list items (<dt> and <dd>) must be wrapped in a parent <dl> element to ensure that screen readers can properly announce them. Learn how to structure definition lists correctly.
ARIA IDs are unique
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn how to fix duplicate ARIA IDs.
No form fields have multiple labels
Form fields with multiple labels can be confusingly announced by assistive technologies like screen readers which use either the first, the last, or all of the labels. Learn how to use form labels.
<frame> or <iframe> elements have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
<html> element has an [xml:lang] attribute with the same base language as the [lang] attribute.
If the webpage does not specify a consistent language, then the screen reader might not announce the page's text correctly. Learn more about the lang attribute.
Input buttons have discernible text.
Adding discernable and accessible text to input buttons may help screen reader users understand the purpose of the input button. Learn more about input buttons.
<input type="image"> elements have [alt] text
When an image is being used as an <input> button, providing alternative text can help screen reader users understand the purpose of the button. Learn about input image alt text.
Links are distinguishable without relying on color.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
The document does not use <meta http-equiv="refresh">
Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. Learn more about the refresh meta tag.
<object> elements have alternate text
Screen readers cannot translate non-text content. Adding alternate text to <object> elements helps screen readers convey meaning to users. Learn more about alt text for object elements.
Tables have different content in the summary attribute and <caption>.
The summary attribute should describe the table structure, while <caption> should have the onscreen title. Accurate table mark-up helps users of screen readers. Learn more about summary and caption.
Cells in a <table> element that use the [headers] attribute refer to table cells within the same table.
Screen readers have features to make navigating tables easier. Ensuring <td> cells using the [headers] attribute only refer to other cells in the same table may improve the experience for screen reader users. Learn more about the headers attribute.
<th> elements and elements with [role="columnheader"/"rowheader"] have data cells they describe.
Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. Learn more about table headers.
[lang] attributes have a valid value
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn how to use the lang attribute.
<video> elements contain a <track> element with [kind="captions"]
When a video provides a caption it is easier for deaf and hearing impaired users to access its information. Learn more about video captions.
79
Best Practices
General
Uses deprecated APIs 1 warning found
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Deprecation / Warning
Source
Booking.com
content
UnloadHandler
…core_cloudfront_sd/9420186….js:43:26308
(cf.bstatic.com)
Browser errors were logged to the console
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Source
Description
Other Google APIs/SDKs
utility
/gsi/client:71:488
(accounts.google.com)
[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.
Booking.com
content
…core_cloudfront_sd/9420186….js:43:56955
(cf.bstatic.com)
Listener added for a 'DOMNodeInserted' mutation event. Support for this event type has been removed, and this event will no longer be fired. See https://chromestatus.com/feature/5083947249172480 for more information.
booking.com
1st party
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k:1:0
(www.booking.com)
The fetch of the config file resulted in a network error: ERR_NAME_NOT_RESOLVED
/index.en-gb.html?label=gen173nr-…&sid=fc8d977…&k:1:0
(www.booking.com)
The provider's FedCM config file fetch resulted in an error response code.
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Name
Version
jQuery
2.2.4
Preact
10
Lo-Dash
4.17.21
Trust and Safety
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSS
Description
Directive
Severity
No CSP found in enforcement mode
High
Passed audits (13)
Show Hide
Uses HTTPS
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Avoids third-party cookies
Chrome is moving towards a new experience that allows users to choose to browse without third-party cookies. Learn more about third-party cookies.
Allows users to paste into input fields
Preventing input pasting is a bad practice for the UX, and weakens security by blocking password managers.Learn more about user-friendly input fields.
Avoids requesting the geolocation permission on page load
Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn more about the geolocation permission.
Avoids requesting the notification permission on page load
Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.
Displays images with correct aspect ratio
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Serves images with appropriate resolution
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Has a <meta name="viewport"> tag with width or initial-scale
A <meta name="viewport"> not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more about using the viewport meta tag.
Document uses legible font sizes 94.08% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px. Learn more about legible font sizes.
Source
Selector
% of Page Text
Font Size
Booking.com
content
…css/client.732293fa.css:29:3977
(cf.bstatic.com)
.c8079eaf8c
5.40%
10px
Unattributable
Add'l illegible text
0.52%
< 12px
Legible text
94.08%
≥ 12px
Page has the HTML doctype
Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.
Properly defines charset
A character encoding declaration is required. It can be done with a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.
No issues in the Issues panel in Chrome Devtools
Issues logged to the Issues panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Page has valid source maps
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
URL
Map URL
Booking.com
content
…js/remoteEntry.f739b58b.client.js
(cf.bstatic.com)
…js/remoteEntry.f739b58b.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.edd37f33.client.js
(cf.bstatic.com)
…js/remoteEntry.edd37f33.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.db477c45.client.js
(cf.bstatic.com)
…js/remoteEntry.db477c45.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.cd1959a3.client.js
(cf.bstatic.com)
…js/remoteEntry.cd1959a3.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.beedbe6a.client.js
(cf.bstatic.com)
…js/remoteEntry.beedbe6a.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.b87cd2fb.client.js
(cf.bstatic.com)
…js/remoteEntry.b87cd2fb.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.9d1c2e5b.client.js
(cf.bstatic.com)
…js/remoteEntry.9d1c2e5b.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.6917f40a.client.js
(cf.bstatic.com)
…js/remoteEntry.6917f40a.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.3961dfd5.client.js
(cf.bstatic.com)
…js/remoteEntry.3961dfd5.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.2d8a7d3e.client.js
(cf.bstatic.com)
…js/remoteEntry.2d8a7d3e.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.11b850c0.client.js
(cf.bstatic.com)
…js/remoteEntry.11b850c0.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.073a8498.client.js
(cf.bstatic.com)
…js/remoteEntry.073a8498.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….231b029b.js
(cf.bstatic.com)
…js/node_modu….231b029b.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….67aa5d77.js
(cf.bstatic.com)
…js/node_modu….67aa5d77.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….6473a23f.js
(cf.bstatic.com)
…js/node_modu….6473a23f.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
…js/f624ebdb.ef67c435.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/f41dcaf5.cbd24a1b.chunk.js
(cf.bstatic.com)
…js/f41dcaf5.cbd24a1b.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ef191925.22a9a9d0.chunk.js
(cf.bstatic.com)
…js/ef191925.22a9a9d0.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ebf8c3e3.fe641b24.chunk.js
(cf.bstatic.com)
…js/ebf8c3e3.fe641b24.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
…js/ddf740c7.cdd2d3be.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
…js/dc32f6b7.755a0500.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
…js/d9560671.6fcd0586.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/client.cd422f95.js
(cf.bstatic.com)
…js/client.cd422f95.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ce4afa91.ed717715.chunk.js
(cf.bstatic.com)
…js/ce4afa91.ed717715.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
…js/b9a82cb8.b6cb4432.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/b4bfc4cb.b5abfb13.chunk.js
(cf.bstatic.com)
…js/b4bfc4cb.b5abfb13.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/b37e9879.41776dea.chunk.js
(cf.bstatic.com)
…js/b37e9879.41776dea.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/97a643cd.9c1e7d4b.chunk.js
(cf.bstatic.com)
…js/97a643cd.9c1e7d4b.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/95a17449.b83d3688.chunk.js
(cf.bstatic.com)
…js/95a17449.b83d3688.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
…js/81da5f32.c9a1118a.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/8067d7e4.33f6bb11.chunk.js
(cf.bstatic.com)
…js/8067d7e4.33f6bb11.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/7e8161ba.19a6aa6f.chunk.js
(cf.bstatic.com)
…js/7e8161ba.19a6aa6f.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
…js/782ad794.c0d867ee.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/63bff8e9.92d79f49.chunk.js
(cf.bstatic.com)
…js/63bff8e9.92d79f49.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
…js/5b1239aa.c5aa61a9.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
…js/5aeeadf2.30f8c390.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
…js/5638344d.c3cbae57.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
…js/4a89d2db.92ae2ee0.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
…js/4a89d2db.92ae2ee0.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/36086793.a456df3d.chunk.js
(cf.bstatic.com)
…js/36086793.a456df3d.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/31e40d2f.121fcc22.chunk.js
(cf.bstatic.com)
…js/31e40d2f.121fcc22.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
…js/2e2b58a0.9c64bf87.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
…js/282e5b08.4ce11061.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/27bbaa9c.8b72ff1e.chunk.js
(cf.bstatic.com)
…js/27bbaa9c.8b72ff1e.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/22e5ddc2.df620328.chunk.js
(cf.bstatic.com)
…js/22e5ddc2.df620328.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
…js/18cad957.7be507a1.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/17154553.6572ed9a.chunk.js
(cf.bstatic.com)
…js/17154553.6572ed9a.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/0a098284.e848f476.chunk.js
(cf.bstatic.com)
…js/0a098284.e848f476.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/09fb2abd.65a9febf.chunk.js
(cf.bstatic.com)
…js/09fb2abd.65a9febf.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
Google/Doubleclick Ads
ad
/bg/bHuCxueCF….js
(pagead2.googlesyndication.com)
Not applicable (1)
Show Hide
Redirects HTTP traffic to HTTPS
Make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. Learn more.
100
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Additional items to manually check (1)
Show Hide
Structured data is valid
Run the Structured Data Testing Tool and the Structured Data Linter to validate structured data. Learn more about Structured Data.
Run these additional validators on your site to check additional SEO best practices.
Passed audits (10)
Show Hide
Page isn’t blocked from indexing
Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn more about crawler directives.
Document has a <title> element
The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
Document has a meta description
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Page has successful HTTP status code
Pages with unsuccessful HTTP status codes may not be indexed properly. Learn more about HTTP status codes.
Links have descriptive text
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Links are crawlable
Search engines may use href attributes on links to crawl websites. Ensure that the href attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
robots.txt is valid
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Image elements have [alt] attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the alt attribute.
Document has a valid hreflang
hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about hreflang.
Document has a valid rel=canonical
Canonical links suggest which URL to show in search results. Learn more about canonical links.
Discover what your real users are experiencing
Core Web Vitals Assessment: Failed
Largest Contentful Paint (LCP)
2.8 s
Page LoadsGood (≤ 2.5 s)66%Needs Improvement (2.5 s - 4 s)24%Poor (> 4 s)10%75th Percentile - 2.8 sCore Web Vital
Interaction to Next Paint (INP)
140 ms
Page LoadsGood (≤ 200 ms)82%Needs Improvement (200 ms - 500 ms)11%Poor (> 500 ms)7%75th Percentile - 140 msCore Web Vital
Cumulative Layout Shift (CLS)
0.09
Page LoadsGood (≤ 0.1)77%Needs Improvement (0.1 - 0.25)20%Poor (> 0.25)3%75th Percentile - 0.09Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
2.5 s
Page LoadsGood (≤ 1.8 s)48%Needs Improvement (1.8 s - 3 s)39%Poor (> 3 s)14%75th Percentile - 2.5 s 
Time to First Byte (TTFB)
1.6 s
Page LoadsGood (≤ 0.8 s)37%Needs Improvement (0.8 s - 1.8 s)46%Poor (> 1.8 s)17%75th Percentile - 1.6 sExperimental
Latest 28-day collection period
Various desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Core Web Vitals Assessment: Failed
Largest Contentful Paint (LCP)
3 s
Page LoadsGood (≤ 2.5 s)57%Needs Improvement (2.5 s - 4 s)34%Poor (> 4 s)9%75th Percentile - 3 sCore Web Vital
Interaction to Next Paint (INP)
180 ms
Page LoadsGood (≤ 200 ms)78%Needs Improvement (200 ms - 500 ms)15%Poor (> 500 ms)7%75th Percentile - 180 msCore Web Vital
Cumulative Layout Shift (CLS)
0.05
Page LoadsGood (≤ 0.1)86%Needs Improvement (0.1 - 0.25)10%Poor (> 0.25)4%75th Percentile - 0.05Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
2.7 s
Page LoadsGood (≤ 1.8 s)28%Needs Improvement (1.8 s - 3 s)55%Poor (> 3 s)18%75th Percentile - 2.7 s 
Time to First Byte (TTFB)
1.4 s
Page LoadsGood (≤ 0.8 s)34%Needs Improvement (0.8 s - 1.8 s)54%Poor (> 1.8 s)12%75th Percentile - 1.4 sExperimental
Latest 28-day collection period
Various desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues
30
Performance
100
Accessibility
96
Best Practices
92
SEO
30
Performance
100
Accessibility
96
Best Practices
92
SEO
30 FCP+8LCP+4TBT+6CLS+13SI+0 Performance
Values are estimated and may vary. The performance score is calculated directly from these metrics.See calculator.
0–49 50–89 90–100
Final Screenshot
Metrics
First Contentful Paint
1.2 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric.
Largest Contentful Paint
4.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Total Blocking Time
590 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric.
Cumulative Layout Shift
0.244
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.
Speed Index
5.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
  • Captured at Feb 17, 2025, 8:00 AM UTC
  • Emulated Desktop with Lighthouse 12.2.3
    Unthrottled CPU/Memory Power: 359 CPU throttling: 1x slowdown (Simulated) Screen emulation: 1350x940, DPR 1 Axe version: 4.10.2
  • Single page session
    This data is taken from a single page session, as opposed to field data summarizing many sessions.
  • Initial page load
  • Custom throttling
    Network throttling: 40 ms TCP RTT, 10,240 kb/s throughput (Simulated) Browser location: North America
  • Using HeadlessChromium 133.0.6943.53 with lr
    User agent (network): "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Show audits relevant to:
Diagnostics
Avoid large layout shifts 13 layout shifts found
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLSCLS
Element
Layout shift score
Offers Promotions, deals and special offers for you Save on stays worldwide Sta…
<div id="basiclayout" class="basiclayout_pe">
0.121
Media element lacking an explicit size
Media element lacking an explicit size
…fonts-brand/BookingRegular.woff
(t-cf.bstatic.com)
Web font loaded
…fonts-brand/BookingExtraBold.woff
(t-cf.bstatic.com)
Web font loaded
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
Web font loaded
…css/97a643cd.b8649497.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/282e5b08.1b7e4e45.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
A late network request adjusted the page layout
…plugable-access-form_cloudfront_sd/3ae2aaa….js
(cf.bstatic.com)
A late network request adjusted the page layout
…sp-on-maps_cloudfront_sd/b896ada….js
(cf.bstatic.com)
A late network request adjusted the page layout
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f624ebdb.b2ef7e74.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7e8161ba.5c9046bb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/2c6b580e.ec1ad625.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/0d919837.224a4efc.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/b9a82cb8.8d31da0e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/3c29a897.e2b34b5c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/59306dc3.d86b946e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5f127cf4.35e552cf.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…customer/cookie-banner.min.js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ddf740c7.79134fd2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/6b631c3f.d822a629.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ace575b5.d6168f66.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/client.732293fa.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7943e0ea.58b200e2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/da3d7717.cf04a134.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5638344d.fcc5cfb6.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/9214bfa8.95bf1807.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/cf2b0303.4e70912d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d8454389.27b04995.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d9560671.eaed1c71.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
Offers Promotions, deals and special offers for you Save on stays worldwide Sta…
<div id="basiclayout" class="basiclayout_pe">
0.121
0.001
…css/97a643cd.b8649497.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/282e5b08.1b7e4e45.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
A late network request adjusted the page layout
…plugable-access-form_cloudfront_sd/3ae2aaa….js
(cf.bstatic.com)
A late network request adjusted the page layout
…sp-on-maps_cloudfront_sd/b896ada….js
(cf.bstatic.com)
A late network request adjusted the page layout
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f624ebdb.b2ef7e74.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7e8161ba.5c9046bb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/2c6b580e.ec1ad625.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/0d919837.224a4efc.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/b9a82cb8.8d31da0e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/3c29a897.e2b34b5c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/59306dc3.d86b946e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5f127cf4.35e552cf.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…customer/cookie-banner.min.js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ddf740c7.79134fd2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/6b631c3f.d822a629.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ace575b5.d6168f66.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/client.732293fa.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7943e0ea.58b200e2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/da3d7717.cf04a134.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5638344d.fcc5cfb6.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/9214bfa8.95bf1807.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/cf2b0303.4e70912d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d8454389.27b04995.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d9560671.eaed1c71.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
0.001
…css/97a643cd.b8649497.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/282e5b08.1b7e4e45.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
A late network request adjusted the page layout
…plugable-access-form_cloudfront_sd/3ae2aaa….js
(cf.bstatic.com)
A late network request adjusted the page layout
…sp-on-maps_cloudfront_sd/b896ada….js
(cf.bstatic.com)
A late network request adjusted the page layout
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f624ebdb.b2ef7e74.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7e8161ba.5c9046bb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/2c6b580e.ec1ad625.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/0d919837.224a4efc.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/b9a82cb8.8d31da0e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/3c29a897.e2b34b5c.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/59306dc3.d86b946e.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5f127cf4.35e552cf.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…customer/cookie-banner.min.js
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ddf740c7.79134fd2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/6b631c3f.d822a629.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/ace575b5.d6168f66.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/client.732293fa.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/7943e0ea.58b200e2.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/da3d7717.cf04a134.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/5638344d.fcc5cfb6.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/9214bfa8.95bf1807.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/cf2b0303.4e70912d.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d8454389.27b04995.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
…css/d9560671.eaed1c71.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
0.001
0.001
Check-in date — Check-out date 2 adults · 0 children · 1 room Search I’m lookin…
<div class="hero-banner-searchbox">
0.001
0.000
…css/2e2b58a0.4b5741f8.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
0.000
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f ba6d792fd4" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAolBM…" alt="" role="presentation" loading="lazy">
Media element lacking an explicit size
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f ba6d792fd4" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAolBM…" alt="" role="presentation" loading="lazy">
Media element lacking an explicit size
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f ba6d792fd4" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAolBM…" alt="" role="presentation" loading="lazy">
Media element lacking an explicit size
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f ba6d792fd4" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAolBM…" alt="" role="presentation" loading="lazy">
Media element lacking an explicit size
div.c624d7469d > div.c624d7469d > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f ba6d792fd4" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAMAAADXqc3KAAAAclBM…" alt="" role="presentation" loading="lazy">
Media element lacking an explicit size
0.000
0.000
/gsi/style
(accounts.google.com)
A late network request adjusted the page layout
0.000
/gsi/style
(accounts.google.com)
A late network request adjusted the page layout
0.000
…css/5aeeadf2.4c678ae6.chunk.css
(cf.bstatic.com)
A late network request adjusted the page layout
Reduce JavaScript execution time 2.9 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.TBT
URL
Total CPU Time
Script Evaluation
Script Parse
Booking.com
content
2,677 ms
2,033 ms
30 ms
…js/client.cd422f95.js
(cf.bstatic.com)
2,270 ms
1,675 ms
17 ms
…lazy_load_images_cloudfront_sd/77204d4….js
(cf.bstatic.com)
241 ms
221 ms
0 ms
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
90 ms
65 ms
10 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
77 ms
72 ms
3 ms
booking.com
1st party
753 ms
45 ms
16 ms
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
753 ms
45 ms
16 ms
Unattributable
394 ms
100 ms
0 ms
Unattributable
394 ms
100 ms
0 ms
Google Tag Manager
tag-manager
379 ms
312 ms
23 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
186 ms
172 ms
8 ms
/gtag/destination?id=…
(www.googletagmanager.com)
79 ms
37 ms
5 ms
/gtag/js?id=…
(www.googletagmanager.com)
61 ms
54 ms
6 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
54 ms
49 ms
4 ms
awswaf.com
333 ms
297 ms
15 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
333 ms
297 ms
15 ms
Google/Doubleclick Ads
ad
99 ms
69 ms
8 ms
…m202…/pubads_impl.js
(securepubads.g.doubleclick.net)
99 ms
69 ms
8 ms
Minimize main-thread work 5.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread workTBT
Category
Time Spent
Script Evaluation
3,511 ms
Style & Layout
790 ms
Other
495 ms
Garbage Collection
244 ms
Script Parsing & Compilation
235 ms
Rendering
120 ms
Parse HTML & CSS
83 ms
Reduce the impact of third-party code Third-party code blocked the main thread for 760 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.TBT
Third-Party
Transfer Size
Main-Thread Blocking Time
Booking.com
content
4,238 KiB
534 ms
…js/client.cd422f95.js
(cf.bstatic.com)
277 KiB
452 ms
…lazy_load_images_cloudfront_sd/77204d4….js
(cf.bstatic.com)
2 KiB
51 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
41 KiB
27 ms
…jquery_cloudfront_sd/e1e8c0e….js
(cf.bstatic.com)
33 KiB
2 ms
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
141 KiB
1 ms
…customer/cookie-banner.min.js
(cf.bstatic.com)
5 KiB
0 ms
…js/remoteEntry.9d1c2e5b.client.js
(cf.bstatic.com)
9 KiB
0 ms
…error_catcher_bec_cloudfront_sd/c40c556….js
(cf.bstatic.com)
3 KiB
0 ms
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
201 KiB
0 ms
…js/0d919837.de7f12f8.chunk.js
(cf.bstatic.com)
115 KiB
0 ms
…js/ace575b5.59e35c60.chunk.js
(cf.bstatic.com)
112 KiB
0 ms
…720x405/292….webp?k=efc8e33…&o=
(cf.bstatic.com)
101 KiB
0 ms
…booking-iconset-original/29bca18….woff2
(cf.bstatic.com)
91 KiB
0 ms
…600x600/976919.jpg?k=b4d2dd3…&o=
(cf.bstatic.com)
89 KiB
0 ms
…600x600/977409.jpg?k=82c14f9…&o=
(cf.bstatic.com)
85 KiB
0 ms
…600x600/619763.jpg?k=3bfc62a…&o=
(cf.bstatic.com)
77 KiB
0 ms
…square600/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
77 KiB
0 ms
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
75 KiB
0 ms
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
74 KiB
0 ms
…540x405/290….webp?k=916f7ba…&o=
(cf.bstatic.com)
72 KiB
0 ms
…atlas_cst_cloudfront_sd/9a42afa….js
(cf.bstatic.com)
70 KiB
0 ms
…square600/280….webp?k=d5b9f77…&o=
(cf.bstatic.com)
66 KiB
0 ms
…landingpage_cloudfront_sd/f1c8c21….js
(cf.bstatic.com)
65 KiB
0 ms
…600x600/977437.jpg?k=0e8e510…&o=
(cf.bstatic.com)
64 KiB
0 ms
…square600/13125860.webp?k=35b70a7…&o=
(cf.bstatic.com)
62 KiB
0 ms
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
62 KiB
0 ms
…media/bh_aw_cpg_main_image.b4347622.png
(q-xx.bstatic.com)
62 KiB
0 ms
…square600/579….webp?k=e04cc7f…&o=
(cf.bstatic.com)
61 KiB
0 ms
…main_cloudfront_sd.iq_ltr/fe9f543….css
(cf.bstatic.com)
60 KiB
0 ms
…600x600/976884.jpg?k=00a3546…&o=
(cf.bstatic.com)
58 KiB
0 ms
…square600/44146554.webp?k=2b0fd82…&o=
(cf.bstatic.com)
54 KiB
0 ms
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
54 KiB
0 ms
…js/d8454389.cff9e7ee.chunk.js
(cf.bstatic.com)
53 KiB
0 ms
…js/5f127cf4.9def7230.chunk.js
(cf.bstatic.com)
53 KiB
0 ms
…searchbox_cloudfront_sd/cc07110….js
(cf.bstatic.com)
52 KiB
0 ms
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
50 KiB
0 ms
…searchresults_cloudfront_sd.iq_ltr/d12f634….css
(cf.bstatic.com)
50 KiB
0 ms
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
50 KiB
0 ms
…square600/132….webp?k=f9cd304…&o=
(cf.bstatic.com)
49 KiB
0 ms
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
48 KiB
0 ms
…index_cloudfront_sd.iq_ltr/664fd92….css
(cf.bstatic.com)
47 KiB
0 ms
…js/59306dc3.b8c1e0f4.chunk.js
(cf.bstatic.com)
46 KiB
0 ms
…searchresults_cloudfront_sd/dd082e3….js
(cf.bstatic.com)
45 KiB
0 ms
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
42 KiB
0 ms
…square600/531….webp?k=df9d17c…&o=
(cf.bstatic.com)
41 KiB
0 ms
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
41 KiB
0 ms
…fonts-brand/BookingExtraBold.woff
(t-cf.bstatic.com)
40 KiB
0 ms
…fonts-brand/BookingRegular.woff
(t-cf.bstatic.com)
40 KiB
0 ms
…js/7943e0ea.9c6a7f4a.chunk.js
(cf.bstatic.com)
37 KiB
0 ms
…square600/178….webp?k=6c9cfca…&o=
(cf.bstatic.com)
36 KiB
0 ms
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
33 KiB
0 ms
…js/7e8161ba.19a6aa6f.chunk.js
(cf.bstatic.com)
33 KiB
0 ms
…css/client.732293fa.css
(cf.bstatic.com)
33 KiB
0 ms
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
32 KiB
0 ms
…540x405/289….webp?k=99a00f2…&o=
(cf.bstatic.com)
31 KiB
0 ms
…atlas_cloudfront_sd/ed3c4c1….js
(cf.bstatic.com)
29 KiB
0 ms
…gprof_icons_cloudfront_sd.iq_ltr/308436c….css
(cf.bstatic.com)
27 KiB
0 ms
…540x405/288….webp?k=7a96a2b…&o=
(cf.bstatic.com)
25 KiB
0 ms
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
23 KiB
0 ms
…js/8067d7e4.33f6bb11.chunk.js
(cf.bstatic.com)
22 KiB
0 ms
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
22 KiB
0 ms
…js/6b631c3f.ae1f31ec.chunk.js
(cf.bstatic.com)
21 KiB
0 ms
…main_exps_cloudfront_sd.iq_ltr/22870d2….css
(cf.bstatic.com)
21 KiB
0 ms
…300x240/140….jpg?k=39782c8…&o=
(cf.bstatic.com)
20 KiB
0 ms
…js/95a17449.b83d3688.chunk.js
(cf.bstatic.com)
19 KiB
0 ms
…illustrations-traveller/GeniusGenericGiftBox.png
(t-cf.bstatic.com)
19 KiB
0 ms
…300x240/140….jpg?k=ad02b17…&o=
(cf.bstatic.com)
19 KiB
0 ms
…263x210/620….jpeg?k=300d8d8…&o=
(r-xx.bstatic.com)
18 KiB
0 ms
…square240/525….jpg?k=211ef05…&o=
(cf.bstatic.com)
17 KiB
0 ms
…300x240/140….jpg?k=1496051…&o=
(cf.bstatic.com)
17 KiB
0 ms
…300x240/140….jpg?k=4084189…&o=
(cf.bstatic.com)
16 KiB
0 ms
…300x240/140….jpg?k=f77225b…&o=
(cf.bstatic.com)
16 KiB
0 ms
…core-deps-inlinedet_cloudfront_sd/f62025e….js
(cf.bstatic.com)
16 KiB
0 ms
…js/3c29a897.102c26f3.chunk.js
(cf.bstatic.com)
15 KiB
0 ms
…js/cf2b0303.82426894.chunk.js
(cf.bstatic.com)
14 KiB
0 ms
…calendar2_cloudfront_sd/0df4b7c….js
(cf.bstatic.com)
14 KiB
0 ms
…263x210/595….jpeg?k=262826e…&o=
(q-xx.bstatic.com)
13 KiB
0 ms
…xp-index-sb_cloudfront_sd.iq_ltr/5b5ab8a….css
(cf.bstatic.com)
13 KiB
0 ms
…js/09fb2abd.65a9febf.chunk.js
(cf.bstatic.com)
12 KiB
0 ms
…248x248/432….jpeg?k=eb7007b…&o=
(r-xx.bstatic.com)
12 KiB
0 ms
…square240/271….jpg?k=ac216ed…&o=
(cf.bstatic.com)
12 KiB
0 ms
…js/0a098284.e848f476.chunk.js
(cf.bstatic.com)
12 KiB
0 ms
…js/da3d7717.5ba5397b.chunk.js
(cf.bstatic.com)
11 KiB
0 ms
…263x210/595….jpeg?k=01741bc…&o=
(r-xx.bstatic.com)
11 KiB
0 ms
…js/27bbaa9c.8b72ff1e.chunk.js
(cf.bstatic.com)
11 KiB
0 ms
…263x210/595….jpeg?k=3514aa4…&o=
(r-xx.bstatic.com)
10 KiB
0 ms
…js/2c6b580e.f8d15476.chunk.js
(cf.bstatic.com)
10 KiB
0 ms
…js/ebf8c3e3.fe641b24.chunk.js
(cf.bstatic.com)
9 KiB
0 ms
…js/remoteEntry.cd1959a3.client.js
(cf.bstatic.com)
9 KiB
0 ms
…square240/270….jpg?k=15cfb79…&o=
(cf.bstatic.com)
9 KiB
0 ms
…170x136/977409.jpg?k=82c14f9…&o=
(q-xx.bstatic.com)
9 KiB
0 ms
…searchresults_slick_cloudfront_sd/528359e….js
(cf.bstatic.com)
9 KiB
0 ms
…170x136/976877.jpg?k=2aab282…&o=
(r-xx.bstatic.com)
9 KiB
0 ms
…170x136/977388.jpg?k=4c9c542…&o=
(r-xx.bstatic.com)
8 KiB
0 ms
…index_cloudfront_sd/9963238….js
(cf.bstatic.com)
8 KiB
0 ms
…170x136/976919.jpg?k=b4d2dd3…&o=
(r-xx.bstatic.com)
8 KiB
0 ms
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(cf.bstatic.com)
8 KiB
0 ms
…square240/497….jpg?k=a7c38d6…&o=
(cf.bstatic.com)
8 KiB
0 ms
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(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.f739b58b.client.js
(cf.bstatic.com)
8 KiB
0 ms
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(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.edd37f33.client.js
(cf.bstatic.com)
8 KiB
0 ms
…js/remoteEntry.11b850c0.client.js
(cf.bstatic.com)
8 KiB
0 ms
…170x136/976708.jpg?k=cb62481…&o=
(q-xx.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.beedbe6a.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.6917f40a.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.db477c45.client.js
(cf.bstatic.com)
7 KiB
0 ms
…js/remoteEntry.b87cd2fb.client.js
(cf.bstatic.com)
7 KiB
0 ms
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(cf.bstatic.com)
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0 ms
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6 KiB
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6 KiB
0 ms
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5 KiB
0 ms
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4 KiB
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(cf.bstatic.com)
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0 ms
…css/5aeeadf2.4c678ae6.chunk.css
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3 KiB
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(cf.bstatic.com)
3 KiB
0 ms
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3 KiB
0 ms
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(cf.bstatic.com)
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0 ms
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(cf.bstatic.com)
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(cf.bstatic.com)
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(cf.bstatic.com)
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0 ms
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…css/5f127cf4.35e552cf.chunk.css
(cf.bstatic.com)
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0 ms
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0 ms
…js/ce4afa91.ed717715.chunk.js
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0 ms
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0 ms
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0 ms
…js/4a89d2db.92ae2ee0.chunk.js
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2 KiB
0 ms
…css/59306dc3.d86b946e.chunk.css
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2 KiB
0 ms
…js/f41dcaf5.cbd24a1b.chunk.js
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2 KiB
0 ms
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(cf.bstatic.com)
2 KiB
0 ms
…js/9214bfa8.dedab3d7.chunk.js
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0 ms
…css/7943e0ea.58b200e2.chunk.css
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0 ms
…css/97a643cd.b8649497.chunk.css
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0 ms
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2 KiB
0 ms
…js/node_modu….231b029b.js
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2 KiB
0 ms
…css/2e2b58a0.4b5741f8.chunk.css
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2 KiB
0 ms
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/ace575b5.d6168f66.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…images-flags/Gb@3x.png
(t-cf.bstatic.com)
1 KiB
0 ms
…js/node_modu….67aa5d77.js
(cf.bstatic.com)
1 KiB
0 ms
…js/63bff8e9.92d79f49.chunk.js
(cf.bstatic.com)
1 KiB
0 ms
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…js/node_modu….6473a23f.js
(cf.bstatic.com)
1 KiB
0 ms
…css/2c6b580e.ec1ad625.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…js/node_modu….9ae54266.js
(cf.bstatic.com)
1 KiB
0 ms
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/cf2b0303.4e70912d.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/da3d7717.cf04a134.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/3c29a897.e2b34b5c.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
…crossorigin_check_cloudfront_sd/2454015….js
(cf.bstatic.com)
1 KiB
0 ms
…css/9214bfa8.95bf1807.chunk.css
(cf.bstatic.com)
1 KiB
0 ms
awswaf.com
375 KiB
140 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
1 KiB
140 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
364 KiB
0 ms
…a18a4859af9c/telemetry
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
9 KiB
0 ms
…a18a4859af9c/verify
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
1 KiB
0 ms
Google Tag Manager
tag-manager
845 KiB
89 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
137 KiB
51 ms
/gtag/destination?id=…
(www.googletagmanager.com)
98 KiB
27 ms
/gtag/js?id=…
(www.googletagmanager.com)
127 KiB
9 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
94 KiB
2 ms
/gtag/destination?id=…
(www.googletagmanager.com)
106 KiB
0 ms
/gtag/destination?id=…
(www.googletagmanager.com)
98 KiB
0 ms
/gtag/destination?id=…
(www.googletagmanager.com)
95 KiB
0 ms
/gtag/destination?id=…
(www.googletagmanager.com)
89 KiB
0 ms
…5230/sw_iframe.html?origin=https%3A%2F%2Fwww.booking.com
(www.googletagmanager.com)
2 KiB
0 ms
Google/Doubleclick Ads
ad
280 KiB
0 ms
…m202…/pubads_impl.js
(securepubads.g.doubleclick.net)
161 KiB
0 ms
…topics/topics_frame.html
(securepubads.g.doubleclick.net)
29 KiB
0 ms
…js/gpt.js
(securepubads.g.doubleclick.net)
34 KiB
0 ms
…m202…/gpt
(securepubads.g.doubleclick.net)
24 KiB
0 ms
/bg/bHuCxueCF….js
(pagead2.googlesyndication.com)
21 KiB
0 ms
…html/container.html
(8d0015ece276cf7cbfcc140ede6a6915.safeframe.googlesyndication.com)
4 KiB
0 ms
…activity/src=4228414;type=views;cat=views;ord=527…;npa=1;u1=-1…
(ade.googlesyndication.com)
1 KiB
0 ms
/gampad/ads?pvsid=…
(securepubads.g.doubleclick.net)
1 KiB
0 ms
/gampad/ads?pvsid=…
(securepubads.g.doubleclick.net)
1 KiB
0 ms
https://www3.doubleclick.net
1 KiB
0 ms
…106…/value=1.00&guid=ON&script=0&label=undefined
(googleads.g.doubleclick.net)
1 KiB
0 ms
…activity/src=4228414;dc_pre=CLaC9dqey…;type=views;cat=views;or…
(ade.googlesyndication.com)
1 KiB
0 ms
…conversion/988…?random=…
(pagead2.googlesyndication.com)
1 KiB
0 ms
/pagead/ping?e=4&d=ChCCAQ0I-_vk-KiumAYQARgCEgIIBw..
(pagead2.googlesyndication.com)
0 KiB
0 ms
/pagead/sodar?id=sodar2&v=232&li=gpt_m202…&jk=348…&rc=
(pagead2.googlesyndication.com)
0 KiB
0 ms
/ccm/collect?en=…
(pagead2.googlesyndication.com)
0 KiB
0 ms
Optanon
consent-provider
153 KiB
0 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109 KiB
0 ms
…0191998d-4ea0-7a35-bbae-232aa21682f6/en-gb.json
(cdn.cookielaw.org)
27 KiB
0 ms
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
8 KiB
0 ms
…assets/otCommonStyles.css
(cdn.cookielaw.org)
5 KiB
0 ms
…3ea94870-d4b1-483a-b1d2-faf1d982bb31/3ea94870-d4b1-483a-b….json
(cdn.cookielaw.org)
3 KiB
0 ms
…geo/location
(geolocation.onetrust.com)
0 KiB
0 ms
Other Google APIs/SDKs
utility
89 KiB
0 ms
/gsi/client
(accounts.google.com)
86 KiB
0 ms
…api2/aframe
(www.google.com)
2 KiB
0 ms
/gsi/style
(accounts.google.com)
1 KiB
0 ms
Pinterest
social
30 KiB
0 ms
…lib/main.8821a9da.js
(s.pinimg.com)
23 KiB
0 ms
/ct/core.js
(s.pinimg.com)
2 KiB
0 ms
/v3/?event=…
(ct.pinterest.com)
1 KiB
0 ms
/user/?tid=…
(ct.pinterest.com)
1 KiB
0 ms
/user/?event=…
(ct.pinterest.com)
1 KiB
0 ms
/v3/?tid=…
(ct.pinterest.com)
1 KiB
0 ms
/ct.html
(ct.pinterest.com)
1 KiB
0 ms
adtrafficquality.google
26 KiB
0 ms
/getconfig/sodar?sv=200&tid=gpt&tv=m202…&st=env
(ep1.adtrafficquality.google)
13 KiB
0 ms
/sodar/sodar2.js
(ep2.adtrafficquality.google)
7 KiB
0 ms
…232/runner.html
(ep2.adtrafficquality.google)
6 KiB
0 ms
/pagead/sodar?id=…
(ep1.adtrafficquality.google)
0 KiB
0 ms
/generate_204?mLblVw
(ep2.adtrafficquality.google)
0 KiB
0 ms
Bing Ads
ad
16 KiB
0 ms
/bat.js
(bat.bing.com)
15 KiB
0 ms
…action/15005356.js
(bat.bing.com)
1 KiB
0 ms
Yahoo! JAPAN Ads
ad
11 KiB
0 ms
…cv/ytag.js
(s.yimg.jp)
11 KiB
0 ms
bing.net
3 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/action/0?ti=…
(bat.bing.net)
0 KiB
0 ms
/actionp/0?ti=…
(bat.bing.net)
0 KiB
0 ms
google.com
2 KiB
0 ms
/about/enterprise/
(marketingplatform.google.com)
2 KiB
0 ms
RTB House AdPilot
ad
1 KiB
0 ms
/tags?type=…
(creativecdn.com)
1 KiB
0 ms
/tags?type=…
(creativecdn.com)
0 KiB
0 ms
Largest Contentful Paint element 4,280 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint elementLCP
Element
Find deals for any season
<span data-testid="herobanner-title1" class="f49c3e3e97 fb4fcd9c72 b940d0c9d3">
Phase
% of LCP
Timing
TTFB
6%
250 ms
Load Delay
0%
0 ms
Load Time
0%
0 ms
Render Delay
94%
4,030 ms
Reduce unused JavaScript Potential savings of 2,069 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
1,739.1 KiB
1,252.4 KiB
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
200.5 KiB
188.9 KiB
…js/client.cd422f95.js
(cf.bstatic.com)
276.2 KiB
122.5 KiB
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
140.4 KiB
108.8 KiB
…js/ace575b5.59e35c60.chunk.js
(cf.bstatic.com)
110.7 KiB
101.2 KiB
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
61.5 KiB
59.3 KiB
…landingpage_cloudfront_sd/f1c8c21….js
(cf.bstatic.com)
64.5 KiB
56.0 KiB
…js/d8454389.cff9e7ee.chunk.js
(cf.bstatic.com)
52.4 KiB
52.2 KiB
…js/5f127cf4.9def7230.chunk.js
(cf.bstatic.com)
52.4 KiB
52.2 KiB
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
72.9 KiB
49.1 KiB
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
47.2 KiB
46.9 KiB
…searchbox_cloudfront_sd/cc07110….js
(cf.bstatic.com)
51.2 KiB
46.8 KiB
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
49.2 KiB
39.3 KiB
…js/59306dc3.b8c1e0f4.chunk.js
(cf.bstatic.com)
45.1 KiB
37.6 KiB
…js/0d919837.de7f12f8.chunk.js
(cf.bstatic.com)
114.3 KiB
34.6 KiB
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
74.2 KiB
33.3 KiB
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
32.6 KiB
30.3 KiB
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
40.5 KiB
27.6 KiB
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
52.7 KiB
26.7 KiB
…js/7943e0ea.9c6a7f4a.chunk.js
(cf.bstatic.com)
36.4 KiB
26.3 KiB
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
31.4 KiB
25.4 KiB
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
48.7 KiB
23.1 KiB
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
22.5 KiB
22.0 KiB
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
21.6 KiB
21.1 KiB
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
40.1 KiB
21.1 KiB
Google Tag Manager
tag-manager
833.8 KiB
410.6 KiB
/gtag/js?id=…
(www.googletagmanager.com)
125.5 KiB
59.2 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
93.9 KiB
57.9 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
96.9 KiB
57.5 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
96.8 KiB
57.5 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
104.6 KiB
51.9 KiB
/gtag/destination?id=…
(www.googletagmanager.com)
87.9 KiB
44.0 KiB
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
92.6 KiB
44.0 KiB
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
135.6 KiB
38.5 KiB
awswaf.com
363.8 KiB
185.1 KiB
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
363.8 KiB
185.1 KiB
Google/Doubleclick Ads
ad
159.8 KiB
87.0 KiB
…m202…/pubads_impl.js
(securepubads.g.doubleclick.net)
159.8 KiB
87.0 KiB
Optanon
consent-provider
108.2 KiB
70.8 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
108.2 KiB
70.8 KiB
Other Google APIs/SDKs
utility
84.9 KiB
62.9 KiB
/gsi/client
(accounts.google.com)
84.9 KiB
62.9 KiB
Avoid multiple page redirects Potential savings of 220 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.LCPFCP
URL
Time Spent
booking.com
1st party
220 ms
https://www.booking.com
220 ms
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
0 ms
Avoid an excessive DOM size 4,283 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn how to avoid an excessive DOM size.TBT
Statistic
Element
Value
Total DOM Elements
4,283
Maximum DOM Depth
span.eedba9e88a > span.fcd9eec8fb > svg > path
<path d="m12.541 21.325-9.588-10a4.923 4.923 0 1 1 6.95-6.976l1.567 1.566a.75.75 0 …">
25
Maximum Child Elements
body#b2indexPage
<body data-bui-theme="traveller_ex-light" id="b2indexPage" class="bookings2 b2 index en lang_is_ltr header_reshuffle no_bg_img nobg user_cen…" style="overflow: hidden; padding-right: 15px;">
195
Eliminate render-blocking resources Potential savings of 120 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
32.8 KiB
80 ms
…css/client.732293fa.css
(cf.bstatic.com)
32.8 KiB
80 ms
Reduce unused CSS Potential savings of 185 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.LCPFCP
URL
Transfer Size
Potential Savings
Booking.com
content
196.6 KiB
185.5 KiB
…main_cloudfront_sd.iq_ltr/fe9f543….css
(cf.bstatic.com)
59.5 KiB
54.7 KiB
…index_cloudfront_sd.iq_ltr/664fd92….css
(cf.bstatic.com)
46.6 KiB
45.9 KiB
…gprof_icons_cloudfront_sd.iq_ltr/308436c….css
(cf.bstatic.com)
26.6 KiB
26.6 KiB
…css/client.732293fa.css
(cf.bstatic.com)
32.0 KiB
26.5 KiB
…main_exps_cloudfront_sd.iq_ltr/22870d2….css
(cf.bstatic.com)
20.2 KiB
20.1 KiB
…xp-index-sb_cloudfront_sd.iq_ltr/5b5ab8a….css
(cf.bstatic.com)
11.7 KiB
11.7 KiB
Properly size images Potential savings of 418 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
598.1 KiB
418.0 KiB
6 best ryokans in Japan to rejuvenate yourself
<img class="bui-card__image" src="https://cf.bstatic.com/xdata/images/xphoto/720x405/292260574.webp?k=efc8e3…" alt="6 best ryokans in Japan to rejuvenate yourself">
…720x405/292….webp?k=efc8e33…&o=
(cf.bstatic.com)
100.9 KiB
79.1 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/619763.jpg?k=3bfc62a779df…" alt="" role="presentation" loading="lazy">
…600x600/619763.jpg?k=3bfc62a…&o=
(cf.bstatic.com)
77.0 KiB
56.9 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/976919.jpg?k=b4d2dd3f8734…" alt="" role="presentation" loading="lazy">
…600x600/976919.jpg?k=b4d2dd3…&o=
(cf.bstatic.com)
88.5 KiB
52.6 KiB
7 best places in Asia to celebrate Christmas
<img class="bui-card__image" src="https://cf.bstatic.com/xdata/images/xphoto/540x405/290483794.webp?k=916f7b…" alt="7 best places in Asia to celebrate Christmas">
…540x405/290….webp?k=916f7ba…&o=
(cf.bstatic.com)
71.5 KiB
50.8 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/977409.jpg?k=82c14f9e6cea…" alt="" role="presentation" loading="lazy">
…600x600/977409.jpg?k=82c14f9…&o=
(cf.bstatic.com)
84.8 KiB
50.5 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/977437.jpg?k=0e8e510a113c…" alt="" role="presentation" loading="lazy">
…600x600/977437.jpg?k=0e8e510…&o=
(cf.bstatic.com)
63.9 KiB
47.2 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/976884.jpg?k=00a3546794e9…" alt="" role="presentation" loading="lazy">
…600x600/976884.jpg?k=00a3546…&o=
(cf.bstatic.com)
57.2 KiB
42.2 KiB
6 magical Christmas experiences in London
<img class="bui-card__image" src="https://cf.bstatic.com/xdata/images/xphoto/540x405/289320924.webp?k=99a00f…" alt="6 magical Christmas experiences in London">
…540x405/289….webp?k=99a00f2…&o=
(cf.bstatic.com)
30.1 KiB
21.4 KiB
Top 5 places for winter sports in South Korea
<img class="bui-card__image" src="https://cf.bstatic.com/xdata/images/xphoto/540x405/288594543.webp?k=7a96a2…" alt="Top 5 places for winter sports in South Korea">
…540x405/288….webp?k=7a96a2b…&o=
(cf.bstatic.com)
24.2 KiB
17.2 KiB
Defer offscreen images Potential savings of 24 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to defer offscreen images.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
24.2 KiB
24.2 KiB
Top 5 places for winter sports in South Korea
<img class="bui-card__image" src="https://cf.bstatic.com/xdata/images/xphoto/540x405/288594543.webp?k=7a96a2…" alt="Top 5 places for winter sports in South Korea">
…540x405/288….webp?k=7a96a2b…&o=
(cf.bstatic.com)
24.2 KiB
24.2 KiB
Serve images in next-gen formats Potential savings of 132 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.LCPFCP
URL
Resource Size
Potential Savings
Booking.com
content
432.4 KiB
131.8 KiB
…media/bh_aw_cpg_main_image.b4347622.png
(q-xx.bstatic.com)
60.9 KiB
40.5 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/976919.jpg?k=b4d2dd3f8734…" alt="" role="presentation" loading="lazy">
…600x600/976919.jpg?k=b4d2dd3…&o=
(cf.bstatic.com)
88.5 KiB
21.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/977409.jpg?k=82c14f9e6cea…" alt="" role="presentation" loading="lazy">
…600x600/977409.jpg?k=82c14f9…&o=
(cf.bstatic.com)
84.8 KiB
19.6 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/619763.jpg?k=3bfc62a779df…" alt="" role="presentation" loading="lazy">
…600x600/619763.jpg?k=3bfc62a…&o=
(cf.bstatic.com)
77.0 KiB
19.3 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/977437.jpg?k=0e8e510a113c…" alt="" role="presentation" loading="lazy">
…600x600/977437.jpg?k=0e8e510…&o=
(cf.bstatic.com)
63.9 KiB
16.0 KiB
div.aea002392a > div.f8e5e86e33 > picture.e5a3812a75 > img.e3fa9175ee
<img class="e3fa9175ee d354f8f44f" src="https://cf.bstatic.com/xdata/images/city/600x600/976884.jpg?k=00a3546794e9…" alt="" role="presentation" loading="lazy">
…600x600/976884.jpg?k=00a3546…&o=
(cf.bstatic.com)
57.2 KiB
15.1 KiB
Serve static assets with an efficient cache policy 71 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
URL
Cache TTL
Transfer Size
Booking.com
content
2,065 KiB
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
None
42 KiB
…fonts-brand/BookingExtraBold.woff
(t-cf.bstatic.com)
None
40 KiB
…fonts-brand/BookingRegular.woff
(t-cf.bstatic.com)
None
40 KiB
…illustrations-traveller/GeniusGenericGiftBox.png
(t-cf.bstatic.com)
None
19 KiB
…images-flags/Gb@3x.png
(t-cf.bstatic.com)
None
1 KiB
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
30d
141 KiB
…720x405/292….webp?k=efc8e33…&o=
(cf.bstatic.com)
30d
101 KiB
…booking-iconset-original/29bca18….woff2
(cf.bstatic.com)
30d
91 KiB
…600x600/976919.jpg?k=b4d2dd3…&o=
(cf.bstatic.com)
30d
89 KiB
…600x600/977409.jpg?k=82c14f9…&o=
(cf.bstatic.com)
30d
85 KiB
…600x600/619763.jpg?k=3bfc62a…&o=
(cf.bstatic.com)
30d
77 KiB
…square600/187….webp?k=0abbcd2…&o=
(cf.bstatic.com)
30d
77 KiB
…540x405/290….webp?k=916f7ba…&o=
(cf.bstatic.com)
30d
72 KiB
…square600/280….webp?k=d5b9f77…&o=
(cf.bstatic.com)
30d
66 KiB
…landingpage_cloudfront_sd/f1c8c21….js
(cf.bstatic.com)
30d
65 KiB
…600x600/977437.jpg?k=0e8e510…&o=
(cf.bstatic.com)
30d
64 KiB
…square600/13125860.webp?k=35b70a7…&o=
(cf.bstatic.com)
30d
62 KiB
…square600/579….webp?k=e04cc7f…&o=
(cf.bstatic.com)
30d
61 KiB
…main_cloudfront_sd.iq_ltr/fe9f543….css
(cf.bstatic.com)
30d
60 KiB
…600x600/976884.jpg?k=00a3546…&o=
(cf.bstatic.com)
30d
58 KiB
…square600/44146554.webp?k=2b0fd82…&o=
(cf.bstatic.com)
30d
54 KiB
…searchbox_cloudfront_sd/cc07110….js
(cf.bstatic.com)
30d
52 KiB
…square600/132….webp?k=f9cd304…&o=
(cf.bstatic.com)
30d
49 KiB
…index_cloudfront_sd.iq_ltr/664fd92….css
(cf.bstatic.com)
30d
47 KiB
…square600/531….webp?k=df9d17c…&o=
(cf.bstatic.com)
30d
41 KiB
…square600/178….webp?k=6c9cfca…&o=
(cf.bstatic.com)
30d
36 KiB
…jquery_cloudfront_sd/e1e8c0e….js
(cf.bstatic.com)
30d
33 KiB
…540x405/289….webp?k=99a00f2…&o=
(cf.bstatic.com)
30d
31 KiB
…gprof_icons_cloudfront_sd.iq_ltr/308436c….css
(cf.bstatic.com)
30d
27 KiB
…540x405/288….webp?k=7a96a2b…&o=
(cf.bstatic.com)
30d
25 KiB
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
30d
23 KiB
…main_exps_cloudfront_sd.iq_ltr/22870d2….css
(cf.bstatic.com)
30d
21 KiB
…300x240/140….jpg?k=39782c8…&o=
(cf.bstatic.com)
30d
20 KiB
…300x240/140….jpg?k=ad02b17…&o=
(cf.bstatic.com)
30d
19 KiB
…263x210/620….jpeg?k=300d8d8…&o=
(r-xx.bstatic.com)
30d
18 KiB
…square240/525….jpg?k=211ef05…&o=
(cf.bstatic.com)
30d
17 KiB
…300x240/140….jpg?k=1496051…&o=
(cf.bstatic.com)
30d
17 KiB
…300x240/140….jpg?k=4084189…&o=
(cf.bstatic.com)
30d
16 KiB
…300x240/140….jpg?k=f77225b…&o=
(cf.bstatic.com)
30d
16 KiB
…core-deps-inlinedet_cloudfront_sd/f62025e….js
(cf.bstatic.com)
30d
16 KiB
…263x210/595….jpeg?k=262826e…&o=
(q-xx.bstatic.com)
30d
13 KiB
…xp-index-sb_cloudfront_sd.iq_ltr/5b5ab8a….css
(cf.bstatic.com)
30d
13 KiB
…248x248/432….jpeg?k=eb7007b…&o=
(r-xx.bstatic.com)
30d
12 KiB
…square240/271….jpg?k=ac216ed…&o=
(cf.bstatic.com)
30d
12 KiB
…263x210/595….jpeg?k=01741bc…&o=
(r-xx.bstatic.com)
30d
11 KiB
…263x210/595….jpeg?k=3514aa4…&o=
(r-xx.bstatic.com)
30d
10 KiB
…square240/270….jpg?k=15cfb79…&o=
(cf.bstatic.com)
30d
9 KiB
…170x136/977409.jpg?k=82c14f9…&o=
(q-xx.bstatic.com)
30d
9 KiB
…170x136/976877.jpg?k=2aab282…&o=
(r-xx.bstatic.com)
30d
9 KiB
…170x136/977388.jpg?k=4c9c542…&o=
(r-xx.bstatic.com)
30d
8 KiB
…index_cloudfront_sd/9963238….js
(cf.bstatic.com)
30d
8 KiB
…170x136/976919.jpg?k=b4d2dd3…&o=
(r-xx.bstatic.com)
30d
8 KiB
…square240/497….jpg?k=a7c38d6…&o=
(cf.bstatic.com)
30d
8 KiB
…170x136/976708.jpg?k=cb62481…&o=
(q-xx.bstatic.com)
30d
7 KiB
…170x136/977437.jpg?k=0e8e510…&o=
(q-xx.bstatic.com)
30d
6 KiB
…300x240/140….jpg?k=4b99c21…&o=
(cf.bstatic.com)
30d
5 KiB
…customer/cookie-banner.min.js
(cf.bstatic.com)
30d
5 KiB
…sp-on-maps_cloudfront_sd/b896ada….js
(cf.bstatic.com)
30d
3 KiB
…error_catcher_bec_cloudfront_sd/c40c556….js
(cf.bstatic.com)
30d
3 KiB
…plugable-access-form_cloudfront_sd/3ae2aaa….js
(cf.bstatic.com)
30d
3 KiB
…lazy_load_images_cloudfront_sd/77204d4….js
(cf.bstatic.com)
30d
2 KiB
…print/0cc4ce4….css
(cf.bstatic.com)
30d
2 KiB
…incentives_cloudfront_sd.iq_ltr/f1558a6….css
(cf.bstatic.com)
30d
2 KiB
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
30d
2 KiB
…crossorigin_check_cloudfront_sd/2454015….js
(cf.bstatic.com)
30d
1 KiB
Optanon
consent-provider
118 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
1d
109 KiB
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
1d
8 KiB
Pinterest
social
26 KiB
/ct/core.js
(s.pinimg.com)
2h
2 KiB
…lib/main.8821a9da.js
(s.pinimg.com)
14d
23 KiB
Yahoo! JAPAN Ads
ad
11 KiB
…cv/ytag.js
(s.yimg.jp)
10m
11 KiB
booking.com
1st party
1 KiB
/logo?ver=1&sid=28bb393…&t=173…
(www.booking.com)
None
1 KiB
Ensure text remains visible during webfont load
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more about font-display.
URL
Potential Savings
Booking.com
content
200 ms
…fonts-brand/BookingBold.woff
(t-cf.bstatic.com)
50 ms
…fonts-brand/BookingRegular.woff
(t-cf.bstatic.com)
90 ms
…fonts-brand/BookingExtraBold.woff
(t-cf.bstatic.com)
60 ms
Avoid serving legacy JavaScript to modern browsers Potential savings of 24 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScriptLCPFCP
URL
Potential Savings
Booking.com
content
17.3 KiB
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
9.2 KiB
…main_cloudfront_sd/9b954b0….js:15:8389
(cf.bstatic.com)
Object.getPrototypeOf
…main_cloudfront_sd/9b954b0….js:24:97517
(cf.bstatic.com)
Date.prototype.toJSON
…main_cloudfront_sd/9b954b0….js:24:311083
(cf.bstatic.com)
Object.entries
…main_cloudfront_sd/9b954b0….js:24:311352
(cf.bstatic.com)
Array.prototype.find
…main_cloudfront_sd/9b954b0….js:24:329040
(cf.bstatic.com)
@babel/plugin-transform-classes
…core-deps-inlinedet_cloudfront_sd/f62025e….js
(cf.bstatic.com)
8.1 KiB
…core-deps-inlinedet_cloudfront_sd/f62025e….js:7:3532
(cf.bstatic.com)
Object.values
…js/client.cd422f95.js
(cf.bstatic.com)
0.0 KiB
…js/client.cd422f95.js:2:710884
(cf.bstatic.com)
@babel/plugin-transform-classes
Optanon
consent-provider
6.9 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
6.9 KiB
…202403.2.0/otBannerSdk.js:7:7371
(cdn.cookielaw.org)
Array.prototype.fill
Avoid enormous network payloads Total size was 6,312 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
URL
Transfer Size
Booking.com
content
846.2 KiB
…js/client.cd422f95.js
(cf.bstatic.com)
277.0 KiB
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
201.3 KiB
…main_cloudfront_sd/9b954b0….js
(cf.bstatic.com)
141.3 KiB
…js/0d919837.de7f12f8.chunk.js
(cf.bstatic.com)
115.0 KiB
…js/ace575b5.59e35c60.chunk.js
(cf.bstatic.com)
111.5 KiB
awswaf.com
364.4 KiB
…a18a4859af9c/challenge.js
(d8c14d4960ca.47a814e6.us-east-2.token.awswaf.com)
364.4 KiB
Google Tag Manager
tag-manager
263.3 KiB
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
136.7 KiB
/gtag/js?id=…
(www.googletagmanager.com)
126.6 KiB
booking.com
1st party
167.2 KiB
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
167.2 KiB
Google/Doubleclick Ads
ad
160.6 KiB
…m202…/pubads_impl.js
(securepubads.g.doubleclick.net)
160.6 KiB
Avoid long main-thread tasks 20 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasksTBT
URL
Start Time
Duration
Booking.com
content
1,194 ms
…js/client.cd422f95.js
(cf.bstatic.com)
6,858 ms
396 ms
…lazy_load_images_cloudfront_sd/77204d4….js
(cf.bstatic.com)
5,222 ms
103 ms
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
7,568 ms
77 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,661 ms
76 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,985 ms
71 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,591 ms
70 ms
…lazy_load_images_cloudfront_sd/77204d4….js
(cf.bstatic.com)
2,620 ms
61 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,475 ms
58 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,533 ms
58 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,756 ms
58 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,898 ms
57 ms
…js/client.cd422f95.js
(cf.bstatic.com)
6,173 ms
56 ms
…js/client.cd422f95.js
(cf.bstatic.com)
5,422 ms
53 ms
Google Tag Manager
tag-manager
289 ms
/gtm.js?id=GTM-5Q664QZ
(www.googletagmanager.com)
3,228 ms
101 ms
/gtag/destination?id=…
(www.googletagmanager.com)
6,068 ms
77 ms
/gtag/js?id=…
(www.googletagmanager.com)
4,049 ms
59 ms
/gtag/js?id=G-A12345&l=dataLayer&cx=c&gtm=45He52d0v79615461za200
(www.googletagmanager.com)
4,289 ms
52 ms
awswaf.com
190 ms
…a18a4859af9c/challenge.js
(d8c14d4960ca.edge.sdk.awswaf.com)
2,911 ms
190 ms
Google/Doubleclick Ads
ad
54 ms
…topics/topics_frame.html
(securepubads.g.doubleclick.net)
257 ms
54 ms
booking.com
1st party
53 ms
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
398 ms
53 ms
Initial server response time was short Root document took 410 ms
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.LCPFCP
URL
Time Spent
booking.com
1st party
410 ms
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
410 ms
User Timing marks and measures 13 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more about User Timing marks.
Name
Type
Start Time
Duration
b-stylesheets
Measure
0.00 ms
1,959.20 ms
b-pre-scripts
Measure
0.00 ms
2,177.00 ms
b-post-scripts
Measure
0.00 ms
2,332.50 ms
TARGETING_PARAMETERS_LATENCY
Measure
3,836.81 ms
880.05 ms
TARGETING_PARAMETERS_LATENCY
Measure
3,836.81 ms
882.04 ms
REMOTE_TARGETING_REQUESTED
Mark
3,808.51 ms
AD_COMPONENT_CREATED
Mark
3,809.14 ms
REMOTE_TARGETING_REQUESTED
Mark
3,836.81 ms
AD_COMPONENT_CREATED
Mark
3,836.94 ms
REMOTE_TARGETING_SUCCESS
Mark
4,716.86 ms
REMOTE_TARGETING_SUCCESS
Mark
4,718.85 ms
AD_SLOT_REQUESTED
Mark
4,783.81 ms
AD_SLOT_REQUESTED
Mark
4,787.73 ms
Avoid chaining critical requests 40 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn how to avoid chaining critical requests.
Maximum critical path latency: 2,024.438 ms
Initial Navigation
https://www.booking.com
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k
(www.booking.com)
…css/client.732293fa.css
(cf.bstatic.com)
- 28.935 ms, 32.76 KiB
…css/97a643cd.b8649497.chunk.css
(cf.bstatic.com)
- 143.071 ms, 1.68 KiB
…css/5638344d.fcc5cfb6.chunk.css
(cf.bstatic.com)
- 23.417 ms, 2.63 KiB
…css/782ad794.d732ad79.chunk.css
(cf.bstatic.com)
- 36.169 ms, 1.46 KiB
…css/ace575b5.d6168f66.chunk.css
(cf.bstatic.com)
- 28.95 ms, 1.44 KiB
…css/9214bfa8.95bf1807.chunk.css
(cf.bstatic.com)
- 22.609 ms, 0.82 KiB
…css/f41dcaf5.4a08a303.chunk.css
(cf.bstatic.com)
- 21.605 ms, 0.96 KiB
…css/6b631c3f.d822a629.chunk.css
(cf.bstatic.com)
- 28.842 ms, 2.16 KiB
…css/63bff8e9.2c75ca3d.chunk.css
(cf.bstatic.com)
- 24.788 ms, 0.86 KiB
…css/59306dc3.d86b946e.chunk.css
(cf.bstatic.com)
- 32.54 ms, 2.09 KiB
…css/5f127cf4.35e552cf.chunk.css
(cf.bstatic.com)
- 31.612 ms, 2.40 KiB
…css/282e5b08.1b7e4e45.chunk.css
(cf.bstatic.com)
- 134.421 ms, 2.80 KiB
…css/5b1239aa.14273f12.chunk.css
(cf.bstatic.com)
- 36.231 ms, 2.86 KiB
…css/2c6b580e.ec1ad625.chunk.css
(cf.bstatic.com)
- 34.53 ms, 1.36 KiB
…css/95a17449.672af8eb.chunk.css
(cf.bstatic.com)
- 21.898 ms, 1.38 KiB
…css/7943e0ea.58b200e2.chunk.css
(cf.bstatic.com)
- 24.469 ms, 1.75 KiB
…css/d8454389.27b04995.chunk.css
(cf.bstatic.com)
- 20.038 ms, 2.39 KiB
…css/f624ebdb.b2ef7e74.chunk.css
(cf.bstatic.com)
- 34.742 ms, 2.84 KiB
…css/ce4afa91.d37fa6d1.chunk.css
(cf.bstatic.com)
- 27.327 ms, 1.29 KiB
…css/d9560671.eaed1c71.chunk.css
(cf.bstatic.com)
- 18.828 ms, 2.49 KiB
…css/b9a82cb8.8d31da0e.chunk.css
(cf.bstatic.com)
- 31.822 ms, 2.85 KiB
…css/cf2b0303.4e70912d.chunk.css
(cf.bstatic.com)
- 20.026 ms, 1.16 KiB
…css/81da5f32.2823ca4c.chunk.css
(cf.bstatic.com)
- 34.378 ms, 3.03 KiB
…css/dc32f6b7.b551d478.chunk.css
(cf.bstatic.com)
- 20.114 ms, 3.13 KiB
…css/18cad957.59e15d61.chunk.css
(cf.bstatic.com)
- 19.634 ms, 1.13 KiB
…css/8067d7e4.59e15d61.chunk.css
(cf.bstatic.com)
- 26.692 ms, 1.13 KiB
…css/09fb2abd.d5c0a0f8.chunk.css
(cf.bstatic.com)
- 20.051 ms, 1.14 KiB
…css/da3d7717.cf04a134.chunk.css
(cf.bstatic.com)
- 22.609 ms, 1.04 KiB
…css/ebf8c3e3.5b77f502.chunk.css
(cf.bstatic.com)
- 38.143 ms, 1.23 KiB
…css/3c29a897.e2b34b5c.chunk.css
(cf.bstatic.com)
- 30.384 ms, 0.99 KiB
…css/0d919837.224a4efc.chunk.css
(cf.bstatic.com)
- 31.423 ms, 4.61 KiB
…css/27bbaa9c.efefaf03.chunk.css
(cf.bstatic.com)
- 26.48 ms, 1.48 KiB
…css/7e8161ba.5c9046bb.chunk.css
(cf.bstatic.com)
- 32.701 ms, 1.63 KiB
…css/ddf740c7.79134fd2.chunk.css
(cf.bstatic.com)
- 26.593 ms, 4.44 KiB
…css/31e40d2f.af9e4e05.chunk.css
(cf.bstatic.com)
- 41.454 ms, 1.24 KiB
…genius_vip_cloudfront_sd/aae9754….js
(cf.bstatic.com)
- 12.23 ms, 1.97 KiB
…sp-on-maps_cloudfront_sd/b896ada….js
(cf.bstatic.com)
- 14.758 ms, 3.05 KiB
…plugable-access-form_cloudfront_sd/3ae2aaa….js
(cf.bstatic.com)
- 15.477 ms, 2.62 KiB
…raf_cloudfront_sd/3aa797c….js
(cf.bstatic.com)
- 23.234 ms, 23.26 KiB
…customer/cookie-banner.min.js
(cf.bstatic.com)
- 29.569 ms, 4.69 KiB
More information about the performance of your application. These numbers don't directly affect the Performance score.
Passed audits (15)
Show Hide
Minify CSS
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.LCPFCP
Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.LCPFCP
Efficiently encode images
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.LCPFCP
Enable text compression
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.LCPFCP
Preconnect to required origins
Consider adding preconnect or dns-prefetch resource hints to establish early connections to important third-party origins. Learn how to preconnect to required origins.LCPFCP
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more about efficient video formatsLCPFCP
Remove duplicate modules in JavaScript bundles
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity. LCPFCP
Preload Largest Contentful Paint image
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements.LCP
Lazy load third-party resources with facades
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade.TBT
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading.LCP
Uses passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as passive to improve your page's scroll performance. Learn more about adopting passive event listeners.
Avoids document.write()
For users on slow connections, external scripts dynamically injected via document.write() can delay page load by tens of seconds. Learn how to avoid document.write().
Avoid non-composited animations
Animations which are not composited can be janky and increase CLS. Learn how to avoid non-composited animationsCLS
Image elements have explicit width and height
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensionsCLS
Has a <meta name="viewport"> tag with width or initial-scale
A <meta name="viewport"> not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more about using the viewport meta tag.
100
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Additional items to manually check (10)
Show Hide
Interactive controls are keyboard focusable
Custom interactive controls are keyboard focusable and display a focus indicator. Learn how to make custom controls focusable.
Interactive elements indicate their purpose and state
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn how to decorate interactive elements with affordance hints.
The page has a logical tab order
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn more about logical tab ordering.
Visual order on the page follows DOM order
DOM order matches the visual order, improving navigation for assistive technology. Learn more about DOM and visual ordering.
User focus is not accidentally trapped in a region
A user can tab into and out of any control or region without accidentally trapping their focus. Learn how to avoid focus traps.
The user's focus is directed to new content added to the page
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn how to direct focus to new content.
HTML5 landmark elements are used to improve navigation
Landmark elements (<main>, <nav>, etc.) are used to improve the keyboard navigation of the page for assistive technology. Learn more about landmark elements.
Offscreen content is hidden from assistive technology
Offscreen content is hidden with display: none or aria-hidden=true. Learn how to properly hide offscreen content.
Custom controls have associated labels
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn more about custom controls and labels.
Custom controls have ARIA roles
Custom interactive controls have appropriate ARIA roles. Learn how to add roles to custom controls.
These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Passed audits (21)
Show Hide
[aria-*] attributes match their roles
Each ARIA role supports a specific subset of aria-* attributes. Mismatching these invalidates the aria-* attributes. Learn how to match ARIA attributes to their roles.
[aria-hidden="true"] is not present on the document <body>
Assistive technologies, like screen readers, work inconsistently when aria-hidden="true" is set on the document <body>. Learn how aria-hidden affects the document body.
[role]s have all required [aria-*] attributes
Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn more about roles and required attributes.
[aria-*] attributes have valid values
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.
[aria-*] attributes are valid and not misspelled
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
Buttons have an accessible name
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
[user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
ARIA attributes are used as specified for the element's role
Some ARIA attributes are only allowed on an element under certain conditions. Learn more about conditional ARIA attributes.
Elements with role="dialog" or role="alertdialog" have accessible names.
ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.
[aria-hidden="true"] elements do not contain focusable descendents
Focusable descendents within an [aria-hidden="true"] element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how aria-hidden affects focusable elements.
Elements use only permitted ARIA attributes
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
[role] values are valid
ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.
Background and foreground colors have a sufficient contrast ratio
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Document has a <title> element
The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
<html> element has a [lang] attribute
If a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the lang attribute.
<html> element has a valid value for its [lang] attribute
Specifying a valid BCP 47 language helps screen readers announce text properly. Learn how to use the lang attribute.
Links have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Touch targets have sufficient size and spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Heading elements appear in a sequentially-descending order
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Uses ARIA roles only on compatible elements
Many HTML elements can only be assigned certain ARIA roles. Using ARIA roles where they are not allowed can interfere with the accessibility of the web page. Learn more about ARIA roles.
Deprecated ARIA roles were not used
Deprecated ARIA roles may not be processed correctly by assistive technology. Learn more about deprecated ARIA roles.
Not applicable (36)
Show Hide
[accesskey] values are unique
Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn more about access keys.
button, link, and menuitem elements have accessible names
When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.
ARIA input fields have accessible names
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.
ARIA meter elements have accessible names
When a meter element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name meter elements.
ARIA progressbar elements have accessible names
When a progressbar element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to label progressbar elements.
Elements with an ARIA [role] that require children to contain a specific [role] have all required children.
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
[role]s are contained by their required parent element
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.
Elements with the role=text attribute do not have focusable descendents.
Adding role=text around a text node split by markup enables VoiceOver to treat it as one phrase, but the element's focusable descendents will not be announced. Learn more about the role=text attribute.
ARIA toggle fields have accessible names
When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about toggle fields.
ARIA tooltip elements have accessible names
When a tooltip element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name tooltip elements.
ARIA treeitem elements have accessible names
When a treeitem element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about labeling treeitem elements.
The page contains a heading, skip link, or landmark region
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more about bypass blocks.
<dl>'s contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.
Definition list items are wrapped in <dl> elements
Definition list items (<dt> and <dd>) must be wrapped in a parent <dl> element to ensure that screen readers can properly announce them. Learn how to structure definition lists correctly.
ARIA IDs are unique
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn how to fix duplicate ARIA IDs.
No form fields have multiple labels
Form fields with multiple labels can be confusingly announced by assistive technologies like screen readers which use either the first, the last, or all of the labels. Learn how to use form labels.
<frame> or <iframe> elements have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
<html> element has an [xml:lang] attribute with the same base language as the [lang] attribute.
If the webpage does not specify a consistent language, then the screen reader might not announce the page's text correctly. Learn more about the lang attribute.
Image elements have [alt] attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the alt attribute.
Image elements do not have [alt] attributes that are redundant text.
Informative elements should aim for short, descriptive alternative text. Alternative text that is exactly the same as the text adjacent to the link or image is potentially confusing for screen reader users, because the text will be read twice. Learn more about the alt attribute.
Input buttons have discernible text.
Adding discernable and accessible text to input buttons may help screen reader users understand the purpose of the input button. Learn more about input buttons.
<input type="image"> elements have [alt] text
When an image is being used as an <input> button, providing alternative text can help screen reader users understand the purpose of the button. Learn about input image alt text.
Form elements have associated labels
Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.
Links are distinguishable without relying on color.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Lists contain only <li> elements and script supporting elements (<script> and <template>).
Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.
List items (<li>) are contained within <ul>, <ol> or <menu> parent elements
Screen readers require list items (<li>) to be contained within a parent <ul>, <ol> or <menu> to be announced properly. Learn more about proper list structure.
The document does not use <meta http-equiv="refresh">
Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. Learn more about the refresh meta tag.
<object> elements have alternate text
Screen readers cannot translate non-text content. Adding alternate text to <object> elements helps screen readers convey meaning to users. Learn more about alt text for object elements.
Select elements have associated label elements.
Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the select element.
No element has a [tabindex] value greater than 0
A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the tabindex attribute.
Tables have different content in the summary attribute and <caption>.
The summary attribute should describe the table structure, while <caption> should have the onscreen title. Accurate table mark-up helps users of screen readers. Learn more about summary and caption.
Cells in a <table> element that use the [headers] attribute refer to table cells within the same table.
Screen readers have features to make navigating tables easier. Ensuring <td> cells using the [headers] attribute only refer to other cells in the same table may improve the experience for screen reader users. Learn more about the headers attribute.
<th> elements and elements with [role="columnheader"/"rowheader"] have data cells they describe.
Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. Learn more about table headers.
[lang] attributes have a valid value
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn how to use the lang attribute.
<video> elements contain a <track> element with [kind="captions"]
When a video provides a caption it is easier for deaf and hearing impaired users to access its information. Learn more about video captions.
96
Best Practices
General
Browser errors were logged to the console
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Source
Description
Other Google APIs/SDKs
utility
/gsi/client:71:488
(accounts.google.com)
[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.
booking.com
1st party
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k:1:0
(www.booking.com)
Refused to execute script from 'https://pagead2.googlesyndication.com/pagead/conversion/988382855/?random=1739779236197&cv=11&fst=1739779236197&bg=ffffff&guid=ON&async=1&gtm=45be52d0v875529256z879615461za201&gcs=G100&gcd=13q3q3q3u5l1&dma_cps=-&dma=0&tag_exp=102067808~102482432~102539968~102558064~102587591~102605417~102640599&u_w=800&u_h=600&url=https%3A%2F%2Fwww.booking.com%2Findex.en-gb.html%3Flabel%3Dgen173nr-1BCAEoggI46AdIM1gEaJECiAEBmAEJuAEYyAEM2AEB6AEBiAIBqAIEuAKe2cu9BsACAdICJDc0M2E3MGE5LTI4NzYtNDc5Ny05YmU2LTIyMTdiYWQ4YTdlZdgCBeACAQ%26sid%3D28bb3938b8d4567c5d5ce584dce15b38%26keep_landing%3D1%26sb_price_type%3Dtotal%26&label=ZgWTCPidsIkYEIeNptcD&hn=www.googleadservices.com&frm=0&tiba=Booking.com%20%7C%20Official%20site%20%7C%20The%20best%20hotels%2C%20flights%2C%20car%20rentals%20%26%20accommodations&value=0&bttype=purchase&npa=1&pscdl=denied&uaa=x86&uab=64&uafvl=Not(A%253ABrand%3B99.0.0.0%7CHeadlessChrome%3B133.0.6943.53%7CChromium%3B133.0.6943.53&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&fdr=Cw&rfmt=3&fmt=4' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k:1:0
(www.booking.com)
The fetch of the config file resulted in a network error: ERR_NAME_NOT_RESOLVED
/index.en-gb.html?label=gen173nr-…&sid=28bb393…&k:1:0
(www.booking.com)
The provider's FedCM config file fetch resulted in an error response code.
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Name
Version
jQuery
1.11.3
Lo-Dash
4.17.21
Trust and Safety
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSS
Description
Directive
Severity
No CSP found in enforcement mode
High
Passed audits (13)
Show Hide
Uses HTTPS
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Avoids deprecated APIs
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Avoids third-party cookies
Chrome is moving towards a new experience that allows users to choose to browse without third-party cookies. Learn more about third-party cookies.
Allows users to paste into input fields
Preventing input pasting is a bad practice for the UX, and weakens security by blocking password managers.Learn more about user-friendly input fields.
Avoids requesting the geolocation permission on page load
Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn more about the geolocation permission.
Avoids requesting the notification permission on page load
Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.
Displays images with correct aspect ratio
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Serves images with appropriate resolution
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Has a <meta name="viewport"> tag with width or initial-scale
A <meta name="viewport"> not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more about using the viewport meta tag.
Page has the HTML doctype
Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.
Properly defines charset
A character encoding declaration is required. It can be done with a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.
No issues in the Issues panel in Chrome Devtools
Issues logged to the Issues panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Page has valid source maps
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
URL
Map URL
Booking.com
content
…js/remoteEntry.f739b58b.client.js
(cf.bstatic.com)
…js/remoteEntry.f739b58b.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.edd37f33.client.js
(cf.bstatic.com)
…js/remoteEntry.edd37f33.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.db477c45.client.js
(cf.bstatic.com)
…js/remoteEntry.db477c45.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.cd1959a3.client.js
(cf.bstatic.com)
…js/remoteEntry.cd1959a3.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.beedbe6a.client.js
(cf.bstatic.com)
…js/remoteEntry.beedbe6a.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.b87cd2fb.client.js
(cf.bstatic.com)
…js/remoteEntry.b87cd2fb.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.9d1c2e5b.client.js
(cf.bstatic.com)
…js/remoteEntry.9d1c2e5b.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.6917f40a.client.js
(cf.bstatic.com)
…js/remoteEntry.6917f40a.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.3961dfd5.client.js
(cf.bstatic.com)
…js/remoteEntry.3961dfd5.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.2d8a7d3e.client.js
(cf.bstatic.com)
…js/remoteEntry.2d8a7d3e.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.11b850c0.client.js
(cf.bstatic.com)
…js/remoteEntry.11b850c0.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/remoteEntry.073a8498.client.js
(cf.bstatic.com)
…js/remoteEntry.073a8498.client.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….231b029b.js
(cf.bstatic.com)
…js/node_modu….231b029b.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….9ae54266.js
(cf.bstatic.com)
…js/node_modu….9ae54266.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….67aa5d77.js
(cf.bstatic.com)
…js/node_modu….67aa5d77.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/node_modu….6473a23f.js
(cf.bstatic.com)
…js/node_modu….6473a23f.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/f624ebdb.ef67c435.chunk.js
(cf.bstatic.com)
…js/f624ebdb.ef67c435.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/f41dcaf5.cbd24a1b.chunk.js
(cf.bstatic.com)
…js/f41dcaf5.cbd24a1b.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ebf8c3e3.fe641b24.chunk.js
(cf.bstatic.com)
…js/ebf8c3e3.fe641b24.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ddf740c7.cdd2d3be.chunk.js
(cf.bstatic.com)
…js/ddf740c7.cdd2d3be.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/dc32f6b7.755a0500.chunk.js
(cf.bstatic.com)
…js/dc32f6b7.755a0500.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/da3d7717.5ba5397b.chunk.js
(cf.bstatic.com)
…js/da3d7717.5ba5397b.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/d9560671.6fcd0586.chunk.js
(cf.bstatic.com)
…js/d9560671.6fcd0586.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/d8454389.cff9e7ee.chunk.js
(cf.bstatic.com)
…js/d8454389.cff9e7ee.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/client.cd422f95.js
(cf.bstatic.com)
…js/client.cd422f95.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/cf2b0303.82426894.chunk.js
(cf.bstatic.com)
…js/cf2b0303.82426894.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ce4afa91.ed717715.chunk.js
(cf.bstatic.com)
…js/ce4afa91.ed717715.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/b9a82cb8.b6cb4432.chunk.js
(cf.bstatic.com)
…js/b9a82cb8.b6cb4432.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/ace575b5.59e35c60.chunk.js
(cf.bstatic.com)
…js/ace575b5.59e35c60.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/97a643cd.9c1e7d4b.chunk.js
(cf.bstatic.com)
…js/97a643cd.9c1e7d4b.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/95a17449.b83d3688.chunk.js
(cf.bstatic.com)
…js/95a17449.b83d3688.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/9214bfa8.dedab3d7.chunk.js
(cf.bstatic.com)
…js/9214bfa8.dedab3d7.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/81da5f32.c9a1118a.chunk.js
(cf.bstatic.com)
…js/81da5f32.c9a1118a.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/8067d7e4.33f6bb11.chunk.js
(cf.bstatic.com)
…js/8067d7e4.33f6bb11.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/7e8161ba.19a6aa6f.chunk.js
(cf.bstatic.com)
…js/7e8161ba.19a6aa6f.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/7943e0ea.9c6a7f4a.chunk.js
(cf.bstatic.com)
…js/7943e0ea.9c6a7f4a.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/782ad794.c0d867ee.chunk.js
(cf.bstatic.com)
…js/782ad794.c0d867ee.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/6b631c3f.ae1f31ec.chunk.js
(cf.bstatic.com)
…js/6b631c3f.ae1f31ec.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/63bff8e9.92d79f49.chunk.js
(cf.bstatic.com)
…js/63bff8e9.92d79f49.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5f127cf4.9def7230.chunk.js
(cf.bstatic.com)
…js/5f127cf4.9def7230.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5b1239aa.c5aa61a9.chunk.js
(cf.bstatic.com)
…js/5b1239aa.c5aa61a9.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5aeeadf2.30f8c390.chunk.js
(cf.bstatic.com)
…js/5aeeadf2.30f8c390.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/59306dc3.b8c1e0f4.chunk.js
(cf.bstatic.com)
…js/59306dc3.b8c1e0f4.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/5638344d.c3cbae57.chunk.js
(cf.bstatic.com)
…js/5638344d.c3cbae57.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
…js/4a89d2db.92ae2ee0.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/4a89d2db.92ae2ee0.chunk.js
(cf.bstatic.com)
…js/4a89d2db.92ae2ee0.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/3c29a897.102c26f3.chunk.js
(cf.bstatic.com)
…js/3c29a897.102c26f3.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/36086793.a456df3d.chunk.js
(cf.bstatic.com)
…js/36086793.a456df3d.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/31e40d2f.121fcc22.chunk.js
(cf.bstatic.com)
…js/31e40d2f.121fcc22.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/2e2b58a0.9c64bf87.chunk.js
(cf.bstatic.com)
…js/2e2b58a0.9c64bf87.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/2c6b580e.f8d15476.chunk.js
(cf.bstatic.com)
…js/2c6b580e.f8d15476.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/282e5b08.4ce11061.chunk.js
(cf.bstatic.com)
…js/282e5b08.4ce11061.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/27bbaa9c.8b72ff1e.chunk.js
(cf.bstatic.com)
…js/27bbaa9c.8b72ff1e.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/18cad957.7be507a1.chunk.js
(cf.bstatic.com)
…js/18cad957.7be507a1.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/0d919837.de7f12f8.chunk.js
(cf.bstatic.com)
…js/0d919837.de7f12f8.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/0a098284.e848f476.chunk.js
(cf.bstatic.com)
…js/0a098284.e848f476.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
…js/09fb2abd.65a9febf.chunk.js
(cf.bstatic.com)
…js/09fb2abd.65a9febf.chunk.js.map
(istatic.booking.com)
TypeError: Failed to fetch
Google/Doubleclick Ads
ad
/bg/bHuCxueCF….js
(pagead2.googlesyndication.com)
Not applicable (2)
Show Hide
Redirects HTTP traffic to HTTPS
Make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. Learn more.
Document uses legible font sizes
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px. Learn more about legible font sizes.
92
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Content Best Practices
Links do not have descriptive text 1 link found
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Link destination
Link Text
booking.com
1st party
/articles.html?aid=304142
(www.booking.com)
More
Format your HTML in a way that enables crawlers to better understand your app’s content.
Additional items to manually check (1)
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Structured data is valid
Run the Structured Data Testing Tool and the Structured Data Linter to validate structured data. Learn more about Structured Data.
Run these additional validators on your site to check additional SEO best practices.
Passed audits (8)
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Page isn’t blocked from indexing
Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn more about crawler directives.
Document has a <title> element
The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
Document has a meta description
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Page has successful HTTP status code
Pages with unsuccessful HTTP status codes may not be indexed properly. Learn more about HTTP status codes.
Links are crawlable
Search engines may use href attributes on links to crawl websites. Ensure that the href attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
robots.txt is valid
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Document has a valid hreflang
hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about hreflang.
Document has a valid rel=canonical
Canonical links suggest which URL to show in search results. Learn more about canonical links.
Not applicable (1)
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Image elements have [alt] attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the alt attribute.