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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 24, 2025, 6:00:39 PM
Discover what your real users are experiencing
Core Web Vitals Assessment: Failed
Largest Contentful Paint (LCP)
1.7 s
Page LoadsGood (≤ 2.5 s)87%Needs Improvement (2.5 s - 4 s)8%Poor (> 4 s)5%75th Percentile - 1.7 sCore Web Vital
Interaction to Next Paint (INP)
223 ms
Page LoadsGood (≤ 200 ms)71%Needs Improvement (200 ms - 500 ms)23%Poor (> 500 ms)6%75th Percentile - 223 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (≤ 0.1)100%Needs Improvement (0.1 - 0.25)0%Poor (> 0.25)0%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.5 s
Page LoadsGood (≤ 1.8 s)84%Needs Improvement (1.8 s - 3 s)11%Poor (> 3 s)5%75th Percentile - 1.5 s 
Time to First Byte (TTFB)
1 s
Page LoadsGood (≤ 0.8 s)66%Needs Improvement (0.8 s - 1.8 s)27%Poor (> 1.8 s)8%75th Percentile - 1 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)
2.5 s
Page LoadsGood (≤ 2.5 s)75%Needs Improvement (2.5 s - 4 s)16%Poor (> 4 s)9%75th Percentile - 2.5 sCore Web Vital
Interaction to Next Paint (INP)
464 ms
Page LoadsGood (≤ 200 ms)53%Needs Improvement (200 ms - 500 ms)23%Poor (> 500 ms)23%75th Percentile - 464 msCore Web Vital
Cumulative Layout Shift (CLS)
0.02
Page LoadsGood (≤ 0.1)81%Needs Improvement (0.1 - 0.25)3%Poor (> 0.25)16%75th Percentile - 0.02Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
2 s
Page LoadsGood (≤ 1.8 s)69%Needs Improvement (1.8 s - 3 s)20%Poor (> 3 s)11%75th Percentile - 2 s 
Time to First Byte (TTFB)
1.4 s
Page LoadsGood (≤ 0.8 s)50%Needs Improvement (0.8 s - 1.8 s)33%Poor (> 1.8 s)17%75th Percentile - 1.4 sExperimental
Latest 28-day collection period
Various mobile devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues
50
Performance
80
Accessibility
96
Best Practices
92
SEO
50
Performance
80
Accessibility
96
Best Practices
92
SEO
50 FCP+10LCP+0TBT+14CLS+25SI+2 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
1.4 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
16.3 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
630 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
8.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
  • Captured at Feb 24, 2025, 6:00 PM UTC
  • Emulated Moto G Power with Lighthouse 12.2.3
    Unthrottled CPU/Memory Power: 516 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
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Show audits relevant to:
Diagnostics
Largest Contentful Paint element 16,310 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint elementLCP
Element
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/51C8CF36-1B11-4C3A-BF5E-C…" style="transition: opacity 200ms; opacity: 1;">
Phase
% of LCP
Timing
TTFB
4%
600 ms
Load Delay
74%
12,020 ms
Load Time
8%
1,320 ms
Render Delay
15%
2,360 ms
Reduce JavaScript execution time 2.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.TBT
URL
Total CPU Time
Script Evaluation
Script Parse
burberry.com
1st party
2,352 ms
1,755 ms
33 ms
/assets/e996173…
(fr.burberry.com)
1,625 ms
1,354 ms
3 ms
https://fr.burberry.com
339 ms
133 ms
8 ms
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
296 ms
177 ms
20 ms
…pages/%5B%5B...path%5D%5D-a652555ba8517c27.js
(fr.burberry.com)
92 ms
91 ms
2 ms
Unattributable
399 ms
99 ms
0 ms
Unattributable
399 ms
99 ms
0 ms
Optimizely
analytics
138 ms
129 ms
6 ms
/js/174….js
(cdn.optimizely.com)
138 ms
129 ms
6 ms
Google Tag Manager
tag-manager
137 ms
122 ms
11 ms
/gtm.js?id=…
(www.googletagmanager.com)
137 ms
122 ms
11 ms
Optanon
consent-provider
124 ms
85 ms
8 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
124 ms
85 ms
8 ms
New Relic
utility
83 ms
78 ms
2 ms
/nr-spa-1.283.2.min.js
(js-agent.newrelic.com)
83 ms
78 ms
2 ms
Minimize main-thread work 3.5 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
2,470 ms
Other
399 ms
Garbage Collection
250 ms
Style & Layout
210 ms
Script Parsing & Compilation
96 ms
Parse HTML & CSS
71 ms
Rendering
42 ms
Avoid an excessive DOM size 1,774 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
1,774
Maximum DOM Depth
a.css-11cfnoo > div.e14owicd1 > picture > source
<source sizes="(max-width: 1023px) 100vw, 50vw" srcset="https://assets.burberry.com/is/image/Burberryltd/7951DA2F-72ED-4300-8AE3-D…" media="(max-width: 1023px)">
17
Maximum Child Elements
Suivez nos actualités E-mail Trouver une boutique Services Burberry Service cl…
<footer id="footer" class="css-w56c0b eh5uodx1">
14
Reduce initial server response time Root document took 720 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
burberry.com
1st party
720 ms
https://fr.burberry.com
720 ms
Largest Contentful Paint image was 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
Element
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/51C8CF36-1B11-4C3A-BF5E-C…" style="transition: opacity 200ms; opacity: 1;">
Reduce unused JavaScript Potential savings of 564 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
Next.jsUse Webpack Bundle Analyzer to detect unused JavaScript code. Learn more
URL
Transfer Size
Potential Savings
burberry.com
1st party
679.9 KiB
413.4 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
191.3 KiB
189.7 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
351.1 KiB
174.4 KiB
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
82.3 KiB
27.9 KiB
/assets/e996173…
(fr.burberry.com)
55.2 KiB
21.4 KiB
Optanon
consent-provider
108.2 KiB
57.5 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
108.2 KiB
57.5 KiB
Google Tag Manager
tag-manager
137.2 KiB
53.3 KiB
/gtm.js?id=…
(www.googletagmanager.com)
137.2 KiB
53.3 KiB
Optimizely
analytics
100.4 KiB
39.5 KiB
/js/174….js
(cdn.optimizely.com)
100.4 KiB
39.5 KiB
Properly size images Potential savings of 246 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.LCPFCP
Next.jsUse the next/image component to set the appropriate sizes. Learn more.
URL
Resource Size
Potential Savings
burberry.com
1st party
930.1 KiB
245.8 KiB
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/51C8CF36-1B11-4C3A-BF5E-C…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/51C8CF36-…?wid=800
(assets.burberry.com)
317.1 KiB
59.5 KiB
La campagne "It's Always Burberry Weather" avec un mannequin portant un trench …
<img alt="La campagne &quot;It's Always Burberry Weather&quot; avec un mannequin portant un tr…" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/AC285F74-08C8-4367-B05E-E…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/AC285F74-…?wid=800
(assets.burberry.com)
228.3 KiB
43.0 KiB
Écharpe en laine Check EKD coloris sable
<img alt="Écharpe en laine Check EKD coloris sable" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/6D2CED73-0B22-4F13-BEDE-E…" srcset="https://assets.burberry.com/is/image/Burberryltd/6D2CED73-0B22-4F13-BEDE-E…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/6D2CED73-…?wid=800
(assets.burberry.com)
54.8 KiB
40.8 KiB
La campagne "It's Always Burberry Weather" avec deux mannequins portant des tre…
<img alt="La campagne &quot;It's Always Burberry Weather&quot; avec deux mannequins portant de…" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/218AC153-7B13-41EC-881C-E…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/218AC153-…?wid=800
(assets.burberry.com)
160.8 KiB
30.3 KiB
La campagne "It's Always Burberry Weather" avec Aimee Lou Wood et Michael Ward …
<img alt="La campagne &quot;It's Always Burberry Weather&quot; avec Aimee Lou Wood et Michael …" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/AA55BFA4-E3C7-4006-9730-5…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/AA55BFA4-…?wid=800
(assets.burberry.com)
96.6 KiB
18.1 KiB
Trench long Castleford coloris beige
<img alt="Trench long Castleford coloris beige" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/266684BD-EB0B-4E63-8304-0…" srcset="https://assets.burberry.com/is/image/Burberryltd/266684BD-EB0B-4E63-8304-0…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/266684BD-…?wid=800
(assets.burberry.com)
19.4 KiB
14.5 KiB
Trench long en coton mélangé coloris Heron
<img alt="Trench long en coton mélangé coloris Heron" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/7951DA2F-72ED-4300-8AE3-D…" srcset="https://assets.burberry.com/is/image/Burberryltd/7951DA2F-72ED-4300-8AE3-D…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/7951DA2F-…?wid=800
(assets.burberry.com)
18.5 KiB
13.8 KiB
Paletot long en gabardine coloris Fossil
<img alt="Paletot long en gabardine coloris Fossil" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/2102306A-6768-45CD-87E4-A…" srcset="https://assets.burberry.com/is/image/Burberryltd/2102306A-6768-45CD-87E4-A…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/2102306A-…?wid=800
(assets.burberry.com)
17.4 KiB
13.0 KiB
Trench long Castleford coloris Juniper
<img alt="Trench long Castleford coloris Juniper" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/D0846537-D111-4A70-B3BD-4…" srcset="https://assets.burberry.com/is/image/Burberryltd/D0846537-D111-4A70-B3BD-4…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/D0846537-…?wid=800
(assets.burberry.com)
17.2 KiB
12.8 KiB
Serve static assets with an efficient cache policy 62 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Next.jsConfigure caching for immutable assets and Server-side Rendered (SSR) pages. Learn more.
URL
Cache TTL
Transfer Size
burberry.com
1st party
5,382 KiB
…chunks/2486.1c94d98e2f7222b0.js
(fr.burberry.com)
1m 21s
12 KiB
…chunks/3567.ae9a7aaaea19a69f.js
(fr.burberry.com)
1m 27s
30 KiB
…5dVkZ-oqT…/_ssgManifest.js
(fr.burberry.com)
1m 53s
1 KiB
…chunks/8993.e5a798e8742f6fdb.js
(fr.burberry.com)
1m 55s
6 KiB
…chunks/5956.37ac1c3014def89b.js
(fr.burberry.com)
1m 59s
4 KiB
…chunks/1435.e7998df0ea9d172f.js
(fr.burberry.com)
2m 33s
21 KiB
…boss-assets/8946-f6d9e9a9d7ae8684.css
(fr.burberry.com)
3m 19s
6 KiB
…assets/index-B9nRAYWM.js
(creativetech.static.burberry.com)
3m 37s
4 KiB
…chunks/chat-button.160dabe6534b328f.js
(fr.burberry.com)
5m 21s
1 KiB
…chunks/3113.6e5eb2a6e0a75939.js
(fr.burberry.com)
5m 46s
5 KiB
…chunks/42.6de444bcf986b7ce.js
(fr.burberry.com)
6m 48s
5 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
7m 2s
352 KiB
…chunks/9440.e33ce4c9f95b6dc0.js
(fr.burberry.com)
7m 25s
6 KiB
…chunks/ekd.4077bb21f9af3a8c.js
(fr.burberry.com)
7m 57s
1 KiB
…chunks/burberry-wipe.ffe8bfccb2397d93.js
(fr.burberry.com)
8m 7s
2 KiB
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
9m 38s
83 KiB
/assets/e996173…
(fr.burberry.com)
10m
56 KiB
…chunks/3275.308cc1549a1d72e6.js
(fr.burberry.com)
11m 50s
9 KiB
…assets/index-BR9hTRLz.css
(creativetech.static.burberry.com)
13m 30s
1 KiB
…chunks/8511.1635d253ae5a0a53.js
(fr.burberry.com)
3d 21h 52m 34s
4 KiB
…chunks/1781.424372e80fc2bc78.js
(fr.burberry.com)
6d 3h 18m 18s
3 KiB
…creative_tech/w25-show-teaser-2x3.mp4
(assets.burberry.com)
7d
2,786 KiB
…Burberryltd/51C8CF36-…?wid=1400
(assets.burberry.com)
7d
549 KiB
…Burberryltd/51C8CF36-…?wid=800
(assets.burberry.com)
7d
318 KiB
…Burberryltd/AC285F74-…?wid=800
(assets.burberry.com)
7d
229 KiB
…Burberryltd/218AC153-…?wid=800
(assets.burberry.com)
7d
161 KiB
…Burberryltd/AA55BFA4-…?wid=800
(assets.burberry.com)
7d
97 KiB
…Burberryltd/6D2CED73-…?wid=800
(assets.burberry.com)
7d
55 KiB
…Burberryltd/FA50A4EA-…?wid=800
(assets.burberry.com)
7d
30 KiB
…Burberryltd/266684BD-…?wid=800
(assets.burberry.com)
7d
20 KiB
…Burberryltd/7951DA2F-…?wid=800
(assets.burberry.com)
7d
19 KiB
…Burberryltd/2102306A-…?wid=800
(assets.burberry.com)
7d
18 KiB
…Burberryltd/D0846537-…?wid=800
(assets.burberry.com)
7d
18 KiB
…Burberryltd/85B006CF-…?wid=800
(assets.burberry.com)
7d
15 KiB
…Burberryltd/7AB5568B-…?wid=800
(assets.burberry.com)
7d
15 KiB
…Burberryltd/775045C2-…?wid=800
(assets.burberry.com)
7d
12 KiB
…Burberryltd/5CE714B3-…?wid=800
(assets.burberry.com)
7d
10 KiB
…Burberryltd/0AE62B15-…?wid=800
(assets.burberry.com)
7d
2 KiB
…chunks/3793.7dba0efeec506e8e.js
(fr.burberry.com)
7d 5h 58m 3s
11 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
9d 4h 48m 19s
192 KiB
…oracle-book/oracle-book.woff2
(common.static.burberry.com)
9d 11h 11m 45s
60 KiB
…chunks/5940.93879b2a50941ed4.js
(fr.burberry.com)
9d 15h 47m 36s
1 KiB
…pages/%5B%5B...path%5D%5D-a652555ba8517c27.js
(fr.burberry.com)
9d 23h 34m 40s
19 KiB
…chunks/2284.5282fc950f389129.js
(fr.burberry.com)
10d 2h 47m
7 KiB
…chunks/8012.0af5398ae6b7542a.js
(fr.burberry.com)
10d 4h 15m 18s
4 KiB
…chunks/5922.98b4bcad9b350a97.js
(fr.burberry.com)
10d 7h 34s
7 KiB
…chunks/bossStyles-28e523a2ce0023f3.js
(fr.burberry.com)
10d 7h 2m 58s
1 KiB
…5dVkZ-oqT…/_buildManifest.js
(fr.burberry.com)
10d 7h 5m 9s
1 KiB
…chunks/8979.c63cea88494d2e9b.js
(fr.burberry.com)
10d 8h 48m 32s
7 KiB
…chunks/webpack-179bd53895f97fde.js
(fr.burberry.com)
10d 9h 31m 35s
4 KiB
…oracle-book-medium/oracle-book-medium.woff2
(common.static.burberry.com)
10d 10h 16m 42s
64 KiB
…burberry-house-regular/burberry-house-regular.woff2
(common.static.burberry.com)
10d 10h 16m 42s
17 KiB
…chunks/9315.dcae3d0deb675e1d.js
(fr.burberry.com)
11d 1h 13m 50s
1 KiB
…chunks/9347.8b3b1a29d3a320fe.js
(fr.burberry.com)
11d 5h 25m 44s
12 KiB
…chunks/1728.3f50b5d03a367b69.js
(fr.burberry.com)
11d 21h 5m 58s
6 KiB
…chunks/6995.e0afff4332a977f1.js
(fr.burberry.com)
17d 19h 56m 44s
5 KiB
Optanon
consent-provider
123 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
1d
109 KiB
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
1d
8 KiB
…static/powered_by_logo.svg
(cdn.cookielaw.org)
1d
3 KiB
…e9a655ec-…/Burberry-….png
(cdn.cookielaw.org)
1d
3 KiB
Optimizely
analytics
101 KiB
/js/174….js
(cdn.optimizely.com)
2m
101 KiB
cloudfront.net
22 KiB
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
None
22 KiB
Defer offscreen images Potential savings of 3 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
Next.jsUse the next/image component instead of <img> to automatically lazy-load images. Learn more.
URL
Resource Size
Potential Savings
Optanon
consent-provider
2.8 KiB
2.8 KiB
Powered by Onetrust
<img alt="Powered by Onetrust" src="https://cdn.cookielaw.org/logos/static/powered_by_logo.svg">
…static/powered_by_logo.svg
(cdn.cookielaw.org)
2.8 KiB
2.8 KiB
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 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
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
burberry.com
1st party
0.3 KiB
…chunks/3567.ae9a7aaaea19a69f.js
(fr.burberry.com)
0.1 KiB
…chunks/3567.ae9a7aaaea19a69f.js:1:70255
(fr.burberry.com)
@babel/plugin-transform-classes
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
0.1 KiB
…pages/_app-fa78ae11882a6d69.js:1:314480
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/1435.e7998df0ea9d172f.js
(fr.burberry.com)
0.1 KiB
…chunks/1435.e7998df0ea9d172f.js:1:8567
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
0.0 KiB
…chunks/main-a8b57fbc55245235.js:1:272100
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
0.0 KiB
…chunks/2972.61ef5986bfeff730.js:1:2844
(fr.burberry.com)
@babel/plugin-transform-classes
Reduce unused CSS Potential savings of 18 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
Next.jsConsider setting up PurgeCSS in Next.js configuration to remove unused rules from stylesheets. Learn more.
URL
Transfer Size
Potential Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …
21.2 KiB
18.1 KiB
Avoid enormous network payloads Total size was 6,054 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
burberry.com
1st party
4,706.6 KiB
…creative_tech/w25-show-teaser-2x3.mp4
(assets.burberry.com)
2,785.7 KiB
…Burberryltd/51C8CF36-…?wid=1400
(assets.burberry.com)
548.9 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
351.9 KiB
…Burberryltd/51C8CF36-…?wid=800
(assets.burberry.com)
317.6 KiB
…Burberryltd/AC285F74-…?wid=800
(assets.burberry.com)
229.0 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
192.2 KiB
…Burberryltd/218AC153-…?wid=800
(assets.burberry.com)
161.4 KiB
https://fr.burberry.com
119.9 KiB
Google Tag Manager
tag-manager
138.3 KiB
/gtm.js?id=…
(www.googletagmanager.com)
138.3 KiB
Optanon
consent-provider
109.2 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109.2 KiB
Avoid long main-thread tasks 10 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
burberry.com
1st party
1,328 ms
/assets/e996173…
(fr.burberry.com)
14,886 ms
314 ms
…chunks/2486.1c94d98e2f7222b0.js
(fr.burberry.com)
15,200 ms
313 ms
/assets/e996173…
(fr.burberry.com)
15,513 ms
280 ms
/assets/e996173…
(fr.burberry.com)
15,940 ms
156 ms
/assets/e996173…
(fr.burberry.com)
11,136 ms
105 ms
/assets/e996173…
(fr.burberry.com)
3,186 ms
100 ms
/assets/e996173…
(fr.burberry.com)
15,809 ms
60 ms
Optimizely
analytics
127 ms
/js/174….js
(cdn.optimizely.com)
5,440 ms
127 ms
Google Tag Manager
tag-manager
74 ms
/gtm.js?id=…
(www.googletagmanager.com)
17,655 ms
74 ms
Optanon
consent-provider
54 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
7,165 ms
54 ms
Minimize third-party usage Third-party code blocked the main thread for 100 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
Optimizely
analytics
103 KiB
77 ms
/js/174….js
(cdn.optimizely.com)
101 KiB
77 ms
/client_storage/a174….html
(a17489381590.cdn-pci.optimizely.com)
1 KiB
0 ms
/v1/events
(logx.optimizely.com)
1 KiB
0 ms
Google Tag Manager
tag-manager
138 KiB
24 ms
/gtm.js?id=…
(www.googletagmanager.com)
138 KiB
24 ms
Optanon
consent-provider
175 KiB
4 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109 KiB
4 ms
…018e092d-7880-71f2-956f-542266dcf482/fr.json
(cdn.cookielaw.org)
25 KiB
0 ms
…v2/otPcTab.json
(cdn.cookielaw.org)
14 KiB
0 ms
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
8 KiB
0 ms
…assets/otCommonStyles.css
(cdn.cookielaw.org)
5 KiB
0 ms
…assets/otCenterRounded.json
(cdn.cookielaw.org)
3 KiB
0 ms
…static/powered_by_logo.svg
(cdn.cookielaw.org)
3 KiB
0 ms
…e9a655ec-…/Burberry-….png
(cdn.cookielaw.org)
3 KiB
0 ms
…c1ba84e4-a534-4a3c-910e-5795061c0f34/c1ba84e4-a534-4a3c-9….json
(cdn.cookielaw.org)
3 KiB
0 ms
…static/ot_guard_logo.svg
(cdn.cookielaw.org)
1 KiB
0 ms
…geo/location
(geolocation.onetrust.com)
0 KiB
0 ms
New Relic
utility
34 KiB
0 ms
/nr-spa-1.283.2.min.js
(js-agent.newrelic.com)
33 KiB
0 ms
/1/883cbb608e?a=…
(bam.nr-data.net)
1 KiB
0 ms
…1/883cbb608e?a=…
(bam.nr-data.net)
0 KiB
0 ms
cloudfront.net
22 KiB
0 ms
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
22 KiB
0 ms
User Timing marks and measures 9 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.
Next.jsConsider using Next.js Analytics to measure your app's real-world performance. Learn more.
Name
Type
Start Time
Duration
Next.js-before-hydration
Measure
0.00 ms
1,980.11 ms
Next.js-hydration
Measure
1,980.11 ms
468.88 ms
optimizely:blockBegin
Mark
1,390.37 ms
beforeRender
Mark
1,980.11 ms
afterHydrate
Mark
2,449.00 ms
clearMarks
Mark
2,449.36 ms
clearMarks
Mark
2,449.36 ms
clearMarks
Mark
2,449.36 ms
clearMarks
Mark
2,449.37 ms
More information about the performance of your application. These numbers don't directly affect the Performance score.
Passed audits (20)
Show Hide
Eliminate render-blocking resources
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
Next.jsUse the next/script component to defer loading of non-critical third-party scripts. Learn more.
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
Next.jsUse the next/image component instead of <img> to adjust image quality. Learn more.
Serve images in next-gen formats
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
Next.jsUse the next/image component instead of <img> to automatically optimize image format. Learn more.
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
Next.jsEnable compression on your Next.js server. Learn more.
Preconnect to required origins
Warnings:
  • A `<link rel=preconnect>` was found for "https://api.burberry.com" but was not used by the browser. Only use `preconnect` for important origins that the page will certainly request.
  • More than 2 `<link rel=preconnect>` connections were found. These should be used sparingly and only to the most important 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
Avoid multiple page redirects
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.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
Next.jsUse the next/image component and set "priority" to true to preload LCP image. Learn more.
Avoid chaining critical requests
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: 1,176.729 ms
Initial Navigation
https://fr.burberry.com
- 1,176.729 ms, 119.89 KiB
All text remains visible during webfont loads
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more about font-display.
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
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
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
Next.jsUse the next/image component to make sure images are always sized appropriately. Learn more.
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.
80
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 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
Langue Français
<button data-testid="language-picker-button" aria-controls="language-picker-modal" aria-label="Cliquez pour ouvrir la fenêtre des langues et modifier la langue" class="css-8sgliu e1yvoxgm0">
Lieu de livraison France (€)
<button data-testid="country-picker-button" aria-controls="country-picker-modal" aria-label="Cliquez pour ouvrir la fenêtre des destinations et modifier le lieu de liv…" class="css-8sgliu e1yvoxgm0">
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.
Names and labels
Buttons do not 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.
Failing Elements
main#main > div.css-1et4pk2 > article#blt4a3b86ccdbae71db > button
<button data-state="playing" style="border: 0px solid transparent; background: none; position: absolute;">
<frame> or <iframe> elements do not have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Failing Elements
div.css-1et4pk2 > div#blt08a11bded2f2c7c6 > div.css-v7gwe8 > iframe.css-1dzg4bz
<iframe data-testid="iframe" src="https://creativetech.static.burberry.com/yt-reveal/injection/live/index.ht…" loading="lazy" allow="fullscreen; gyroscope; accelerometer; camera *; autoplay *; web-share" class="css-1dzg4bz emxi7ie2">
main#main > div.css-1et4pk2 > article#blt4a3b86ccdbae71db > iframe
<iframe src="https://creativetech.static.burberry.com/signup-video-overlay/live/index.h…" style="position: absolute; z-index: 10; border: none; height: 100%; width: 100%;">
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Best practices
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is 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.
Failing Elements
head > meta
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, viewport-fit=cover" data-next-head="">
These items highlight common accessibility best practices.
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
It’s Always Burberry Weather : London in Love
<h3 class="css-u9784e ehdpulm0">
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 (24)
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 are valid and not misspelled
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
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.
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.
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.
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.
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.
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.
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 (28)
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.
<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.
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.
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
burberry.com
1st party
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:251970
(fr.burberry.com)
Error: Minified React error #423; visit https://reactjs.org/docs/error-decoder.html?invariant=423 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:251971)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lE (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:226894)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225449)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:171351
(fr.burberry.com)
Error: Minified React error #425; visit https://reactjs.org/docs/error-decoder.html?invariant=425 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at rh (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:171352)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:231869
    at lL (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:237381)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230328)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Name
Version
Next.js
15.1.4
core-js
core-js-global@3.33.0
Missing source maps for large first-party JavaScript
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
burberry.com
1st party
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
Large JavaScript file is missing a source map
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
Large JavaScript file is missing a source map
cloudfront.net
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
/v3.1.4/sp.js.map
(dabs7b6g7t59l.cloudfront.net)
SyntaxError: Unexpected token '<', "<?xml vers"... is not valid JSON
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
Host allowlists can frequently be bypassed. Consider using CSP nonces or hashes instead, along with `'strict-dynamic'` if necessary.
default-src
High
`'unsafe-inline'` allows the execution of unsafe in-page scripts and event handlers. Consider using CSP nonces or hashes to allow scripts individually.
default-src
High
Avoid using plain URL schemes (data:) in this directive. Plain URL schemes allow scripts to be sourced from an unsafe domain.
default-src
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.
Document uses legible font sizes 100% 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
Legible text
100.00%
≥ 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.
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.
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.
Crawling and Indexing
robots.txt is not valid 1 error found
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.
Line #
Content
Error
32
https://fr.burberry.com/sitemap-fr.xml
Unknown directive
To appear in search results, crawlers need access to your app.
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 (9)
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
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: Passed
Largest Contentful Paint (LCP)
1.4 s
Page LoadsGood (≤ 2.5 s)91%Needs Improvement (2.5 s - 4 s)6%Poor (> 4 s)3%75th Percentile - 1.4 sCore Web Vital
Interaction to Next Paint (INP)
61 ms
Page LoadsGood (≤ 200 ms)95%Needs Improvement (200 ms - 500 ms)3%Poor (> 500 ms)2%75th Percentile - 61 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (≤ 0.1)100%Needs Improvement (0.1 - 0.25)0%Poor (> 0.25)0%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.2 s
Page LoadsGood (≤ 1.8 s)90%Needs Improvement (1.8 s - 3 s)6%Poor (> 3 s)3%75th Percentile - 1.2 s 
Time to First Byte (TTFB)
0.7 s
Page LoadsGood (≤ 0.8 s)79%Needs Improvement (0.8 s - 1.8 s)16%Poor (> 1.8 s)6%75th Percentile - 0.7 sExperimental
Latest 28-day collection period
Various desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Core Web Vitals Assessment: Passed
Largest Contentful Paint (LCP)
2 s
Page LoadsGood (≤ 2.5 s)84%Needs Improvement (2.5 s - 4 s)11%Poor (> 4 s)5%75th Percentile - 2 sCore Web Vital
Interaction to Next Paint (INP)
160 ms
Page LoadsGood (≤ 200 ms)80%Needs Improvement (200 ms - 500 ms)14%Poor (> 500 ms)6%75th Percentile - 160 msCore Web Vital
Cumulative Layout Shift (CLS)
0.04
Page LoadsGood (≤ 0.1)79%Needs Improvement (0.1 - 0.25)5%Poor (> 0.25)16%75th Percentile - 0.04Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.6 s
Page LoadsGood (≤ 1.8 s)80%Needs Improvement (1.8 s - 3 s)13%Poor (> 3 s)7%75th Percentile - 1.6 s 
Time to First Byte (TTFB)
1.2 s
Page LoadsGood (≤ 0.8 s)60%Needs Improvement (0.8 s - 1.8 s)27%Poor (> 1.8 s)13%75th Percentile - 1.2 sExperimental
Latest 28-day collection period
Various desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues
45
Performance
74
Accessibility
93
Best Practices
85
SEO
45
Performance
74
Accessibility
93
Best Practices
85
SEO
45 FCP+10LCP+6TBT+4CLS+25SI+1 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
0.4 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
3.6 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
740 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
0.005
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.
Speed Index
4.4 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
  • Captured at Feb 24, 2025, 6:00 PM UTC
  • Emulated Desktop with Lighthouse 12.2.3
    Unthrottled CPU/Memory Power: 351 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
Reduce JavaScript execution time 2.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.TBT
URL
Total CPU Time
Script Evaluation
Script Parse
burberry.com
1st party
2,209 ms
1,549 ms
30 ms
/assets/e996173…
(fr.burberry.com)
1,449 ms
1,193 ms
3 ms
https://fr.burberry.com
411 ms
124 ms
6 ms
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
281 ms
167 ms
20 ms
…pages/%5B%5B...path%5D%5D-a652555ba8517c27.js
(fr.burberry.com)
68 ms
67 ms
1 ms
Unattributable
321 ms
75 ms
0 ms
Unattributable
321 ms
75 ms
0 ms
Brightcove
video
304 ms
215 ms
12 ms
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
304 ms
215 ms
12 ms
Optimizely
analytics
118 ms
110 ms
5 ms
/js/174….js
(cdn.optimizely.com)
118 ms
110 ms
5 ms
Google Tag Manager
tag-manager
112 ms
100 ms
8 ms
/gtm.js?id=…
(www.googletagmanager.com)
112 ms
100 ms
8 ms
Optanon
consent-provider
109 ms
72 ms
8 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109 ms
72 ms
8 ms
New Relic
utility
70 ms
65 ms
2 ms
/nr-spa-1.283.2.min.js
(js-agent.newrelic.com)
70 ms
65 ms
2 ms
Minimize main-thread work 3.5 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
2,362 ms
Other
385 ms
Style & Layout
305 ms
Garbage Collection
216 ms
Script Parsing & Compilation
99 ms
Rendering
66 ms
Parse HTML & CSS
63 ms
Largest Contentful Paint element 3,560 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint elementLCP
Element
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/8258A68B-CA0A-4D28-BDE7-1…" style="transition: opacity 200ms; opacity: 1;">
Phase
% of LCP
Timing
TTFB
5%
160 ms
Load Delay
78%
2,790 ms
Load Time
6%
220 ms
Render Delay
11%
380 ms
Largest Contentful Paint image was 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
Element
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/8258A68B-CA0A-4D28-BDE7-1…" style="transition: opacity 200ms; opacity: 1;">
Reduce initial server response time Root document took 1,040 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
burberry.com
1st party
1,040 ms
https://fr.burberry.com
1,040 ms
Reduce unused JavaScript Potential savings of 651 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
Next.jsUse Webpack Bundle Analyzer to detect unused JavaScript code. Learn more
URL
Transfer Size
Potential Savings
burberry.com
1st party
585.9 KiB
366.6 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
191.3 KiB
189.6 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
257.1 KiB
127.7 KiB
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
82.3 KiB
28.1 KiB
/assets/e996173…
(fr.burberry.com)
55.2 KiB
21.1 KiB
Brightcove
video
221.8 KiB
134.4 KiB
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
221.8 KiB
134.4 KiB
Optanon
consent-provider
108.2 KiB
57.5 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
108.2 KiB
57.5 KiB
Google Tag Manager
tag-manager
137.4 KiB
53.3 KiB
/gtm.js?id=…
(www.googletagmanager.com)
137.4 KiB
53.3 KiB
Optimizely
analytics
100.4 KiB
39.5 KiB
/js/174….js
(cdn.optimizely.com)
100.4 KiB
39.5 KiB
Avoid an excessive DOM size 2,221 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
2,221
Maximum DOM Depth
a.css-11cfnoo > div.e14owicd1 > picture > source
<source sizes="(max-width: 1023px) 100vw, 50vw" srcset="https://assets.burberry.com/is/image/Burberryltd/2102306A-6768-45CD-87E4-A…" media="(max-width: 1023px)">
17
Maximum Child Elements
PlayUnmuteCurrent Time 0:00/Duration 0:00Loaded: 0%Stream Type LIVESeek to live…
<div class="vjs-control-bar" dir="ltr">
17
Enable text compression Potential savings of 2 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.LCPFCP
Next.jsEnable compression on your Next.js server. Learn more.
URL
Transfer Size
Potential Savings
Brightcove
video
3.3 KiB
2.3 KiB
…videos/636…
(edge.api.brightcove.com)
3.3 KiB
2.3 KiB
Serve static assets with an efficient cache policy 81 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Next.jsConfigure caching for immutable assets and Server-side Rendered (SSR) pages. Learn more.
URL
Cache TTL
Transfer Size
burberry.com
1st party
5,824 KiB
…chunks/1728.3f50b5d03a367b69.js
(fr.burberry.com)
1m 29s
6 KiB
…chunks/5956.37ac1c3014def89b.js
(fr.burberry.com)
2m 3s
4 KiB
…chunks/3567.ae9a7aaaea19a69f.js
(fr.burberry.com)
2m 8s
30 KiB
…chunks/1435.e7998df0ea9d172f.js
(fr.burberry.com)
3m 44s
21 KiB
…5dVkZ-oqT…/_ssgManifest.js
(fr.burberry.com)
4m 10s
1 KiB
…chunks/8993.e5a798e8742f6fdb.js
(fr.burberry.com)
4m 22s
6 KiB
…chunks/3113.6e5eb2a6e0a75939.js
(fr.burberry.com)
4m 26s
5 KiB
…boss-assets/8946-f6d9e9a9d7ae8684.css
(fr.burberry.com)
4m 33s
6 KiB
…chunks/8012.0af5398ae6b7542a.js
(fr.burberry.com)
4m 34s
5 KiB
…chunks/chat-button.160dabe6534b328f.js
(fr.burberry.com)
5m 47s
1 KiB
…chunks/8511.1635d253ae5a0a53.js
(fr.burberry.com)
6m 25s
4 KiB
…chunks/42.6de444bcf986b7ce.js
(fr.burberry.com)
7m 17s
5 KiB
…chunks/burberry-wipe.ffe8bfccb2397d93.js
(fr.burberry.com)
8m 48s
2 KiB
…assets/index-B9nRAYWM.js
(creativetech.static.burberry.com)
8m 54s
4 KiB
…chunks/ekd.4077bb21f9af3a8c.js
(fr.burberry.com)
9m 10s
1 KiB
…assets/index-BR9hTRLz.css
(creativetech.static.burberry.com)
9m 21s
1 KiB
/assets/e996173…
(fr.burberry.com)
10m
56 KiB
…chunks/9440.e33ce4c9f95b6dc0.js
(fr.burberry.com)
10m 13s
6 KiB
…chunks/2486.1c94d98e2f7222b0.js
(fr.burberry.com)
11m 38s
12 KiB
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
11m 40s
83 KiB
…chunks/3275.308cc1549a1d72e6.js
(fr.burberry.com)
11m 49s
9 KiB
…creative_tech/w25-show-teaser-2x3.mp4
(assets.burberry.com)
7d
2,786 KiB
…Burberryltd/51C8CF36-…?wid=1400
(assets.burberry.com)
7d
549 KiB
…Burberryltd/8258A68B-…?wid=1366
(assets.burberry.com)
7d
321 KiB
…Burberryltd/5BFA5685-…?wid=950
(assets.burberry.com)
7d
259 KiB
…Burberryltd/3743A52B-…?wid=950
(assets.burberry.com)
7d
175 KiB
…Burberryltd/2830A59F-…?wid=1366
(assets.burberry.com)
7d
125 KiB
…Burberryltd/3469BA15-…?wid=1366
(assets.burberry.com)
7d
90 KiB
…Burberryltd/6D2CED73-…?wid=800
(assets.burberry.com)
7d
55 KiB
…Burberryltd/7C364AEA-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
37 KiB
…Burberryltd/D28197A8-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
33 KiB
…Burberryltd/FA50A4EA-…?wid=800
(assets.burberry.com)
7d
30 KiB
…Burberryltd/BFC71332-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
29 KiB
…Burberryltd/9F4B6758-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
27 KiB
…Burberryltd/3B61FBE3-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
27 KiB
…Burberryltd/5ABDCF4D-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
26 KiB
…Burberryltd/FE5185CD-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
23 KiB
…Burberryltd/2121FAA5-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
22 KiB
…Burberryltd/EE9D6F02-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
22 KiB
…Burberryltd/266684BD-…?wid=800
(assets.burberry.com)
7d
20 KiB
…Burberryltd/27733B82-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
19 KiB
…Burberryltd/7951DA2F-…?wid=800
(assets.burberry.com)
7d
19 KiB
…Burberryltd/3990F3CA-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
19 KiB
…Burberryltd/AD66ACB3-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
18 KiB
…Burberryltd/2102306A-…?wid=800
(assets.burberry.com)
7d
18 KiB
…Burberryltd/D0846537-…?wid=800
(assets.burberry.com)
7d
18 KiB
…Burberryltd/2396429B-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
18 KiB
…Burberryltd/B8E4BF57-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
16 KiB
…Burberryltd/68388EA4-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
16 KiB
…Burberryltd/85B006CF-…?wid=800
(assets.burberry.com)
7d
15 KiB
…Burberryltd/315F3A53-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
7d
15 KiB
…Burberryltd/7AB5568B-…?wid=800
(assets.burberry.com)
7d
15 KiB
…Burberryltd/775045C2-…?wid=800
(assets.burberry.com)
7d
12 KiB
…Burberryltd/5CE714B3-…?wid=800
(assets.burberry.com)
7d
10 KiB
…Burberryltd/0AE62B15-…?wid=800
(assets.burberry.com)
7d
2 KiB
…chunks/1781.424372e80fc2bc78.js
(fr.burberry.com)
8d 17h 41m 12s
3 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
9d 4h 47m 41s
192 KiB
…chunks/5940.93879b2a50941ed4.js
(fr.burberry.com)
9d 15h 47m 18s
1 KiB
…oracle-book-medium/oracle-book-medium.woff2
(common.static.burberry.com)
9d 16h 56m 34s
64 KiB
…oracle-book/oracle-book.woff2
(common.static.burberry.com)
9d 16h 56m 34s
60 KiB
…burberry-house-regular/burberry-house-regular.woff2
(common.static.burberry.com)
9d 16h 56m 34s
17 KiB
…pages/%5B%5B...path%5D%5D-a652555ba8517c27.js
(fr.burberry.com)
9d 23h 34m 58s
19 KiB
…chunks/6995.e0afff4332a977f1.js
(fr.burberry.com)
10d 2h 38m 8s
5 KiB
…chunks/2284.5282fc950f389129.js
(fr.burberry.com)
10d 2h 47m 5s
7 KiB
…chunks/8979.c63cea88494d2e9b.js
(fr.burberry.com)
10d 3h 11m 34s
7 KiB
…chunks/5922.98b4bcad9b350a97.js
(fr.burberry.com)
10d 7h 1m 8s
7 KiB
…chunks/bossStyles-28e523a2ce0023f3.js
(fr.burberry.com)
10d 7h 3m 45s
1 KiB
…5dVkZ-oqT…/_buildManifest.js
(fr.burberry.com)
10d 7h 4m 4s
1 KiB
…chunks/3793.7dba0efeec506e8e.js
(fr.burberry.com)
10d 7h 36m 18s
11 KiB
…chunks/check-reveal.750fe0bf4bffd7d4.js
(fr.burberry.com)
10d 12h 47m 39s
2 KiB
…chunks/9315.dcae3d0deb675e1d.js
(fr.burberry.com)
11d 36m 53s
1 KiB
…chunks/9347.8b3b1a29d3a320fe.js
(fr.burberry.com)
11d 10h 19m 15s
12 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
23d 1h 57m 51s
258 KiB
…chunks/webpack-179bd53895f97fde.js
(fr.burberry.com)
28d 6h 59m 36s
4 KiB
Brightcove
video
223 KiB
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
57s
223 KiB
Optanon
consent-provider
123 KiB
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
1d
109 KiB
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
1d
8 KiB
…static/powered_by_logo.svg
(cdn.cookielaw.org)
1d
3 KiB
…e9a655ec-…/Burberry-….png
(cdn.cookielaw.org)
1d
3 KiB
Optimizely
analytics
101 KiB
/js/174….js
(cdn.optimizely.com)
2m
101 KiB
cloudfront.net
23 KiB
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
None
23 KiB
Properly size images Potential savings of 630 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.LCPFCP
Next.jsUse the next/image component to set the appropriate sizes. Learn more.
URL
Resource Size
Potential Savings
burberry.com
1st party
1,322.8 KiB
629.9 KiB
La campagne "It's Always Burberry Weather" avec un mannequin portant un trench …
<img alt="La campagne &quot;It's Always Burberry Weather&quot; avec un mannequin portant un tr…" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/5BFA5685-90EB-4FB7-9037-3…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/5BFA5685-…?wid=950
(assets.burberry.com)
258.7 KiB
131.1 KiB
La campagne "It's Always Burberry Weather" avec deux mannequins portant des tre…
<img alt="La campagne &quot;It's Always Burberry Weather&quot; avec deux mannequins portant de…" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3743A52B-9F26-44CC-A53F-2…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/3743A52B-…?wid=950
(assets.burberry.com)
174.3 KiB
88.3 KiB
Écharpe en laine Check EKD coloris sable
<img alt="Écharpe en laine Check EKD coloris sable" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/6D2CED73-0B22-4F13-BEDE-E…" srcset="https://assets.burberry.com/is/image/Burberryltd/6D2CED73-0B22-4F13-BEDE-E…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/6D2CED73-…?wid=800
(assets.burberry.com)
54.8 KiB
42.9 KiB
Petit sac Messenger B Clip
<img alt="Petit sac Messenger B Clip" src="https://assets.burberry.com/is/image/Burberryltd/7C364AEA-0A11-44C1-9D41-5…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/7C364AEA-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
35.9 KiB
28.6 KiB
Trench long avec foulard soie
<img alt="Trench long avec foulard soie" src="https://assets.burberry.com/is/image/Burberryltd/D28197A8-B145-4045-95B3-7…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/D28197A8-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
31.8 KiB
25.4 KiB
Ceinture en toile Check coloris sable
<img alt="Ceinture en toile Check coloris sable" src="https://assets.burberry.com/is/image/Burberryltd/FA50A4EA-C670-4166-8A43-4…" srcset="https://assets.burberry.com/is/image/Burberryltd/FA50A4EA-C670-4166-8A43-4…" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/FA50A4EA-…?wid=800
(assets.burberry.com)
28.9 KiB
22.6 KiB
Veste trench en gabardine
<img alt="Veste trench en gabardine" src="https://assets.burberry.com/is/image/Burberryltd/BFC71332-5EF9-40BD-AAA6-F…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/BFC71332-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
28.1 KiB
22.4 KiB
Sac ceinture Check
<img alt="Sac ceinture Check" src="https://assets.burberry.com/is/image/Burberryltd/9F4B6758-BED4-4A55-883D-8…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/9F4B6758-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
26.7 KiB
21.3 KiB
Petit sac Messenger B Clip
<img alt="Petit sac Messenger B Clip" src="https://assets.burberry.com/is/image/Burberryltd/3B61FBE3-C53E-463C-91E9-F…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/3B61FBE3-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
26.1 KiB
20.8 KiB
Trench mi-long en gabardine
<img alt="Trench mi-long en gabardine" src="https://assets.burberry.com/is/image/Burberryltd/5ABDCF4D-0009-492B-9EAD-8…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/5ABDCF4D-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
25.6 KiB
20.4 KiB
Trench long avec foulard soie
<img alt="Trench long avec foulard soie" src="https://assets.burberry.com/is/image/Burberryltd/FE5185CD-1EBF-4579-8738-7…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/FE5185CD-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
22.4 KiB
17.8 KiB
Trench mi-long en gabardine
<img alt="Trench mi-long en gabardine" src="https://assets.burberry.com/is/image/Burberryltd/2121FAA5-147E-4E6B-8987-5…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/2121FAA5-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
21.4 KiB
17.1 KiB
Débardeur Festival en coton mélangé
<img alt="Débardeur Festival en coton mélangé" src="https://assets.burberry.com/is/image/Burberryltd/EE9D6F02-7AE4-4192-9CE2-1…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/EE9D6F02-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
21.2 KiB
16.9 KiB
div#video-player > div.css-h0bjib > picture > img
<img sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3469BA15-BDCD-48A8-A3FC-9…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/3469BA15-…?wid=1366
(assets.burberry.com)
89.8 KiB
16.0 KiB
Trench long Castleford coloris beige
<img alt="Trench long Castleford coloris beige" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/266684BD-EB0B-4E63-8304-0…" srcset="https://assets.burberry.com/is/image/Burberryltd/266684BD-EB0B-4E63-8304-0…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/266684BD-…?wid=800
(assets.burberry.com)
19.4 KiB
15.2 KiB
Veste trench en gabardine
<img alt="Veste trench en gabardine" src="https://assets.burberry.com/is/image/Burberryltd/27733B82-3A28-4FC2-8A61-2…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/27733B82-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
18.8 KiB
14.9 KiB
Dessin du Chevalier Burberry EKD sur un cheval
<img alt="Dessin du Chevalier Burberry EKD sur un cheval" sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/8258A68B-CA0A-4D28-BDE7-1…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/8258A68B-…?wid=1366
(assets.burberry.com)
320.7 KiB
14.6 KiB
Paletot long en coton mélangé
<img alt="Paletot long en coton mélangé" src="https://assets.burberry.com/is/image/Burberryltd/3990F3CA-A5EE-400D-9D62-3…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/3990F3CA-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
18.1 KiB
14.4 KiB
Paletot long en coton mélangé
<img alt="Paletot long en coton mélangé" src="https://assets.burberry.com/is/image/Burberryltd/AD66ACB3-3DB7-4113-8808-6…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/AD66ACB3-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
17.5 KiB
13.9 KiB
Paletot long en gabardine coloris Fossil
<img alt="Paletot long en gabardine coloris Fossil" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/2102306A-6768-45CD-87E4-A…" srcset="https://assets.burberry.com/is/image/Burberryltd/2102306A-6768-45CD-87E4-A…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/2102306A-…?wid=800
(assets.burberry.com)
17.4 KiB
13.6 KiB
Sac ceinture Check
<img alt="Sac ceinture Check" src="https://assets.burberry.com/is/image/Burberryltd/2396429B-AA3F-472A-BDF7-1…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/2396429B-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
17.1 KiB
13.6 KiB
Trench long Castleford coloris Juniper
<img alt="Trench long Castleford coloris Juniper" sizes="(max-width: 1023px) 100vw, 50vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/D0846537-D111-4A70-B3BD-4…" srcset="https://assets.burberry.com/is/image/Burberryltd/D0846537-D111-4A70-B3BD-4…" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/D0846537-…?wid=800
(assets.burberry.com)
17.2 KiB
13.4 KiB
Débardeur Festival en coton mélangé
<img alt="Débardeur Festival en coton mélangé" src="https://assets.burberry.com/is/image/Burberryltd/B8E4BF57-15E3-47FA-A07A-F…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/B8E4BF57-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
15.5 KiB
12.3 KiB
Polo en coton
<img alt="Polo en coton" src="https://assets.burberry.com/is/image/Burberryltd/68388EA4-A103-4397-A0B6-1…" sizes="(max-width: 1023px) 50vw, 30vw" loading="lazy" fetchpriority="auto" style="transition: opacity 200ms; opacity: 1;">
…Burberryltd/68388EA4-…?$BBY_V3_SL_1.4$&wid=740&hei=1036
(assets.burberry.com)
15.4 KiB
12.3 KiB
Defer offscreen images Potential savings of 3 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
Next.jsUse the next/image component instead of <img> to automatically lazy-load images. Learn more.
URL
Resource Size
Potential Savings
Optanon
consent-provider
2.8 KiB
2.8 KiB
Powered by Onetrust
<img alt="Powered by Onetrust" src="https://cdn.cookielaw.org/logos/static/powered_by_logo.svg">
…static/powered_by_logo.svg
(cdn.cookielaw.org)
2.8 KiB
2.8 KiB
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 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
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
burberry.com
1st party
0.3 KiB
…chunks/3567.ae9a7aaaea19a69f.js
(fr.burberry.com)
0.1 KiB
…chunks/3567.ae9a7aaaea19a69f.js:1:70255
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/1435.e7998df0ea9d172f.js
(fr.burberry.com)
0.1 KiB
…chunks/1435.e7998df0ea9d172f.js:1:8567
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
0.0 KiB
…chunks/main-a8b57fbc55245235.js:1:272100
(fr.burberry.com)
@babel/plugin-transform-classes
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
0.0 KiB
…pages/_app-fa78ae11882a6d69.js:1:314480
(fr.burberry.com)
@babel/plugin-transform-classes
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
0.0 KiB
…chunks/2972.61ef5986bfeff730.js:1:2844
(fr.burberry.com)
@babel/plugin-transform-classes
Brightcove
video
0.0 KiB
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
0.0 KiB
…Tc5iqtzRUb_default/index.min.js:1:362860
(players.brightcove.net)
@babel/plugin-transform-classes
Reduce unused CSS Potential savings of 18 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
Next.jsConsider setting up PurgeCSS in Next.js configuration to remove unused rules from stylesheets. Learn more.
URL
Transfer Size
Potential Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …
21.2 KiB
18.3 KiB
Avoid enormous network payloads Total size was 6,743 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
burberry.com
1st party
4,665.3 KiB
…creative_tech/w25-show-teaser-2x3.mp4
(assets.burberry.com)
2,785.8 KiB
…Burberryltd/51C8CF36-…?wid=1400
(assets.burberry.com)
548.9 KiB
…Burberryltd/8258A68B-…?wid=1366
(assets.burberry.com)
321.3 KiB
…Burberryltd/5BFA5685-…?wid=950
(assets.burberry.com)
259.3 KiB
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
257.9 KiB
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
192.2 KiB
…Burberryltd/3743A52B-…?wid=950
(assets.burberry.com)
175.0 KiB
…Burberryltd/2830A59F-…?wid=1366
(assets.burberry.com)
124.8 KiB
Brightcove
video
222.7 KiB
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
222.7 KiB
Google Tag Manager
tag-manager
138.5 KiB
/gtm.js?id=…
(www.googletagmanager.com)
138.5 KiB
Avoid long main-thread tasks 8 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
burberry.com
1st party
994 ms
/assets/e996173…
(fr.burberry.com)
2,789 ms
311 ms
…chunks/main-a8b57fbc55245235.js
(fr.burberry.com)
3,100 ms
284 ms
/assets/e996173…
(fr.burberry.com)
3,392 ms
246 ms
/assets/e996173…
(fr.burberry.com)
709 ms
101 ms
/assets/e996173…
(fr.burberry.com)
4,137 ms
52 ms
Brightcove
video
114 ms
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
3,805 ms
114 ms
Optimizely
analytics
109 ms
/js/174….js
(cdn.optimizely.com)
1,073 ms
109 ms
Google Tag Manager
tag-manager
55 ms
/gtm.js?id=…
(www.googletagmanager.com)
3,701 ms
55 ms
Minimize third-party usage Third-party code blocked the main thread for 130 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
Brightcove
video
245 KiB
62 ms
…Tc5iqtzRUb_default/index.min.js
(players.brightcove.net)
223 KiB
62 ms
…videos/636…
(edge.api.brightcove.com)
11 KiB
0 ms
…0.15.3/vtt.global.min.js
(vjs.zencdn.net)
8 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
/v2/tracker?domain=…
(metrics.brightcove.com)
0 KiB
0 ms
Optimizely
analytics
103 KiB
59 ms
/js/174….js
(cdn.optimizely.com)
101 KiB
59 ms
/client_storage/a174….html
(a17489381590.cdn-pci.optimizely.com)
1 KiB
0 ms
/v1/events
(logx.optimizely.com)
1 KiB
0 ms
Google Tag Manager
tag-manager
139 KiB
5 ms
/gtm.js?id=…
(www.googletagmanager.com)
139 KiB
5 ms
Optanon
consent-provider
175 KiB
0 ms
…202403.2.0/otBannerSdk.js
(cdn.cookielaw.org)
109 KiB
0 ms
…018e092d-7880-71f2-956f-542266dcf482/fr.json
(cdn.cookielaw.org)
25 KiB
0 ms
…v2/otPcTab.json
(cdn.cookielaw.org)
14 KiB
0 ms
/scripttemplates/otSDKStub.js
(cdn.cookielaw.org)
8 KiB
0 ms
…assets/otCommonStyles.css
(cdn.cookielaw.org)
5 KiB
0 ms
…assets/otCenterRounded.json
(cdn.cookielaw.org)
3 KiB
0 ms
…static/powered_by_logo.svg
(cdn.cookielaw.org)
3 KiB
0 ms
…e9a655ec-…/Burberry-….png
(cdn.cookielaw.org)
3 KiB
0 ms
…c1ba84e4-a534-4a3c-910e-5795061c0f34/c1ba84e4-a534-4a3c-9….json
(cdn.cookielaw.org)
3 KiB
0 ms
…static/ot_guard_logo.svg
(cdn.cookielaw.org)
1 KiB
0 ms
…geo/location
(geolocation.onetrust.com)
0 KiB
0 ms
New Relic
utility
34 KiB
0 ms
/nr-spa-1.283.2.min.js
(js-agent.newrelic.com)
33 KiB
0 ms
/1/883cbb608e?a=…
(bam.nr-data.net)
1 KiB
0 ms
…1/883cbb608e?a=…
(bam.nr-data.net)
0 KiB
0 ms
cloudfront.net
23 KiB
0 ms
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
23 KiB
0 ms
Avoid large layout shifts 2 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
body > div#loading-animation
<div id="loading-animation" class="hidden">
0.005
…burberry-house-regular/burberry-house-regular.woff2
(common.static.burberry.com)
Web font loaded
Burberry Hiver 2025
<h1 class="css-1hkirsc e4szjte2">
0.002
…assets/index-BR9hTRLz.css
(creativetech.static.burberry.com)
A late network request adjusted the page layout
User Timing marks and measures 18 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.
Next.jsConsider using Next.js Analytics to measure your app's real-world performance. Learn more.
Name
Type
Start Time
Duration
Next.js-before-hydration
Measure
0.00 ms
2,968.15 ms
Next.js-hydration
Measure
2,968.15 ms
575.83 ms
bcAdBlockDetect
Measure
4,353.85 ms
454.39 ms
bcInit
Measure
4,497.79 ms
188.30 ms
bcInit
Measure
4,497.79 ms
211.88 ms
optimizely:blockBegin
Mark
2,120.48 ms
beforeRender
Mark
2,968.15 ms
afterHydrate
Mark
3,543.99 ms
clearMarks
Mark
3,544.28 ms
clearMarks
Mark
3,544.28 ms
clearMarks
Mark
3,544.28 ms
clearMarks
Mark
3,544.29 ms
bcAdBlockDetectStart
Mark
4,353.85 ms
bcInitStart
Mark
4,373.09 ms
bcInitStart
Mark
4,497.79 ms
bcInitEnd
Mark
4,686.09 ms
bcInitEnd
Mark
4,709.66 ms
bcAdBlockDetectEnd
Mark
4,808.24 ms
More information about the performance of your application. These numbers don't directly affect the Performance score.
Passed audits (18)
Show Hide
Eliminate render-blocking resources
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
Next.jsUse the next/script component to defer loading of non-critical third-party scripts. Learn more.
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
Next.jsUse the next/image component instead of <img> to adjust image quality. Learn more.
Serve images in next-gen formats
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
Next.jsUse the next/image component instead of <img> to automatically optimize image format. Learn more.
Preconnect to required origins
Warnings:
  • A `<link rel=preconnect>` was found for "https://api.burberry.com" but was not used by the browser. Only use `preconnect` for important origins that the page will certainly request.
  • More than 2 `<link rel=preconnect>` connections were found. These should be used sparingly and only to the most important 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
Avoid multiple page redirects
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.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
Next.jsUse the next/image component and set "priority" to true to preload LCP image. Learn more.
Avoid chaining critical requests
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: 1,869.354 ms
Initial Navigation
https://fr.burberry.com
- 1,869.354 ms, 121.04 KiB
All text remains visible during webfont loads
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more about font-display.
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
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
Next.jsUse the next/image component to make sure images are always sized appropriately. Learn more.
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.
74
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 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
Langue Français
<button data-testid="language-picker-button" aria-controls="language-picker-modal" aria-label="Cliquez pour ouvrir la fenêtre des langues et modifier la langue" class="css-8sgliu e1yvoxgm0">
Lieu de livraison France (€)
<button data-testid="country-picker-button" aria-controls="country-picker-modal" aria-label="Cliquez pour ouvrir la fenêtre des destinations et modifier le lieu de liv…" class="css-8sgliu e1yvoxgm0">
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.
Names and labels
Buttons do not 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.
Failing Elements
main#main > div.css-1et4pk2 > article#blt4a3b86ccdbae71db > button
<button data-state="playing" style="border: 0px solid transparent; background: none; position: absolute;">
div.css-4upfm0 > section.css-1ea9d78 > div#carousel-pagination-controls > button.css-3dcfz3
<button aria-label="" class="css-3dcfz3 e1o4l6710">
div.css-4upfm0 > section.css-1ea9d78 > div#carousel-pagination-controls > button.css-3dcfz3
<button aria-label="" class="css-3dcfz3 e1o4l6710">
Image elements do not 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.
Failing Elements
div#video-player > div.css-h0bjib > picture > img
<img sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3469BA15-BDCD-48A8-A3FC-9…" style="transition: opacity 200ms; opacity: 1;">
div#video-player > div.css-h0bjib > picture > img
<img sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3469BA15-BDCD-48A8-A3FC-9…" style="transition: opacity 200ms; opacity: 1;">
<frame> or <iframe> elements do not have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Failing Elements
div.css-1et4pk2 > div#blt08a11bded2f2c7c6 > div.css-v7gwe8 > iframe.css-1dzg4bz
<iframe data-testid="iframe" src="https://creativetech.static.burberry.com/yt-reveal/injection/live/index.ht…" loading="lazy" allow="fullscreen; gyroscope; accelerometer; camera *; autoplay *; web-share" class="css-1dzg4bz emxi7ie2">
main#main > div.css-1et4pk2 > article#blt4a3b86ccdbae71db > iframe
<iframe src="https://creativetech.static.burberry.com/signup-video-overlay/live/index.h…" style="position: absolute; z-index: 10; border: none; height: 100%; width: 100%;">
<object> elements do not 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.
Failing Elements
div#video-player > div.css-jsngzv > video-js#vjs_video_3 > object#vjs_video_3_flash_api
<object type="application/x-shockwave-flash" data="//players.brightcove.net/videojs-flashls-source-handler/1.4.8/video-js.swf" width="100%" height="100%" id="vjs_video_3_flash_api" name="vjs_video_3_flash_api" class="vjs-tech">
div#video-player > div.css-jsngzv > video-js#vjs_video_655 > object#vjs_video_655_flash_api
<object type="application/x-shockwave-flash" data="//players.brightcove.net/videojs-flashls-source-handler/1.4.8/video-js.swf" width="100%" height="100%" id="vjs_video_655_flash_api" name="vjs_video_655_flash_api" class="vjs-tech">
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Best practices
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is 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.
Failing Elements
head > meta
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, viewport-fit=cover" data-next-head="">
These items highlight common accessibility best practices.
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
It’s Always Burberry Weather : London in Love
<h3 class="css-u9784e ehdpulm0">
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 (24)
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 are valid and not misspelled
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
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.
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.
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.
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.
[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.
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.
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 (26)
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.
<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.
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.
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.
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.
<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.
93
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
burberry.com
1st party
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:177647
(fr.burberry.com)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at am (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:177648)
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:252302)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:251970
(fr.burberry.com)
Error: Minified React error #423; visit https://reactjs.org/docs/error-decoder.html?invariant=423 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at i (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:251971)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230268)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lE (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:226894)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225449)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
…chunks/main-a8b57fbc55245235.js:1:171351
(fr.burberry.com)
Error: Minified React error #425; visit https://reactjs.org/docs/error-decoder.html?invariant=425 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at rh (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:171352)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:231869
    at lL (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:237381)
    at lA (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230328)
    at https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230135
    at lI (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:230142)
    at lP (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:225181)
    at E (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:268714)
    at MessagePort.T [as   $$__onmessage] (https://fr.burberry.com/nrws/homepage/717224d7cb168b0a867bae0af2e8ce1dc9712436/_next/static/chunks/main-a8b57fbc55245235.js:1:269244)
    at MessagePort.<anonymous> (https://fr.burberry.com/assets/e996173fbe942bdde8264941f1e4c871c79db7da106:26:178)
https://fr.burberry.com:1:0
Refused to load plugin data from 'https://players.brightcove.net/videojs-flashls-source-handler/1.4.8/video-js.swf' because it violates the following Content Security Policy directive: "object-src 'self'".
Brightcove
video
…Tc5iqtzRUb_default/index.min.js:1:364493
(players.brightcove.net)
Refused to load plugin data from 'https://players.brightcove.net/videojs-flashls-source-handler/1.4.8/video-js.swf' because it violates the following Content Security Policy directive: "object-src 'self'".
Issues were logged 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.
Issue type
Content security policy
https://players.brightcove.net
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Name
Version
Next.js
15.1.4
core-js
core-js-global@3.33.0
Missing source maps for large first-party JavaScript
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
burberry.com
1st party
…pages/_app-fa78ae11882a6d69.js
(fr.burberry.com)
Large JavaScript file is missing a source map
…chunks/2972.61ef5986bfeff730.js
(fr.burberry.com)
Large JavaScript file is missing a source map
cloudfront.net
/v3.1.4/3c8ksv.js
(dabs7b6g7t59l.cloudfront.net)
/v3.1.4/sp.js.map
(dabs7b6g7t59l.cloudfront.net)
SyntaxError: Unexpected token '<', "<?xml vers"... is not valid JSON
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
Host allowlists can frequently be bypassed. Consider using CSP nonces or hashes instead, along with `'strict-dynamic'` if necessary.
default-src
High
`'unsafe-inline'` allows the execution of unsafe in-page scripts and event handlers. Consider using CSP nonces or hashes to allow scripts individually.
default-src
High
Avoid using plain URL schemes (data:) in this directive. Plain URL schemes allow scripts to be sourced from an unsafe domain.
default-src
High
Passed audits (11)
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.
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.
85
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.
Crawling and Indexing
robots.txt is not valid 1 error found
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.
Line #
Content
Error
32
https://fr.burberry.com/sitemap-fr.xml
Unknown directive
To appear in search results, crawlers need access to your app.
Content Best Practices
Image elements do not 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.
Failing Elements
div#video-player > div.css-h0bjib > picture > img
<img sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3469BA15-BDCD-48A8-A3FC-9…" style="transition: opacity 200ms; opacity: 1;">
div#video-player > div.css-h0bjib > picture > img
<img sizes="100vw" loading="lazy" fetchpriority="auto" src="https://assets.burberry.com/is/image/Burberryltd/3469BA15-BDCD-48A8-A3FC-9…" style="transition: opacity 200ms; opacity: 1;">
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 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
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.