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PageSpeed Insights
PageSpeed Insights
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Report from Aug 23, 2024, 3:43:04ā€ÆAM
Showing results for URL:Ā https://www.masterclass.com/
Run with original URL
Discover what your real users are experiencing
Core Web Vitals Assessment:Ā Passed
Largest Contentful Paint (LCP)
1.6 s
Page LoadsGood (ā‰¤ 2.5 s)91%Needs Improvement (2.5 s - 4 s)5%Poor (> 4 s)4%75th Percentile - 1.6 sCore Web Vital
Interaction to Next Paint (INP)
200 ms
Page LoadsGood (ā‰¤ 200 ms)75%Needs Improvement (200 ms - 500 ms)20%Poor (> 500 ms)6%75th Percentile - 200 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (ā‰¤ 0.1)93%Needs Improvement (0.1 - 0.25)5%Poor (> 0.25)2%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.6 s
Page LoadsGood (ā‰¤ 1.8 s)82%Needs Improvement (1.8 s - 3 s)12%Poor (> 3 s)6%75th Percentile - 1.6 sĀ 
Time to First Byte (TTFB)
1 s
Page LoadsGood (ā‰¤ 0.8 s)62%Needs Improvement (0.8 s - 1.8 s)30%Poor (> 1.8 s)8%75th Percentile - 1 sExperimental
Latest 28-day collection periodVarious mobile devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Core Web Vitals Assessment:Ā Passed
Largest Contentful Paint (LCP)
1.9 s
Page LoadsGood (ā‰¤ 2.5 s)85%Needs Improvement (2.5 s - 4 s)9%Poor (> 4 s)6%75th Percentile - 1.9 sCore Web Vital
Interaction to Next Paint (INP)
197 ms
Page LoadsGood (ā‰¤ 200 ms)75%Needs Improvement (200 ms - 500 ms)15%Poor (> 500 ms)10%75th Percentile - 197 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (ā‰¤ 0.1)91%Needs Improvement (0.1 - 0.25)5%Poor (> 0.25)4%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.7 s
Page LoadsGood (ā‰¤ 1.8 s)78%Needs Improvement (1.8 s - 3 s)14%Poor (> 3 s)8%75th Percentile - 1.7 sĀ 
Time to First Byte (TTFB)
1 s
Page LoadsGood (ā‰¤ 0.8 s)63%Needs Improvement (0.8 s - 1.8 s)28%Poor (> 1.8 s)9%75th Percentile - 1 sExperimental
Latest 28-day collection periodVarious mobile devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues
Showing results for URL:Ā https://www.masterclass.com/
Run with original URL
Discover what your real users are experiencing
Core Web Vitals Assessment:Ā Passed
Largest Contentful Paint (LCP)
1.5 s
Page LoadsGood (ā‰¤ 2.5 s)92%Needs Improvement (2.5 s - 4 s)5%Poor (> 4 s)3%75th Percentile - 1.5 sCore Web Vital
Interaction to Next Paint (INP)
92 ms
Page LoadsGood (ā‰¤ 200 ms)91%Needs Improvement (200 ms - 500 ms)7%Poor (> 500 ms)2%75th Percentile - 92 msCore Web Vital
Cumulative Layout Shift (CLS)
0
Page LoadsGood (ā‰¤ 0.1)92%Needs Improvement (0.1 - 0.25)1%Poor (> 0.25)6%75th Percentile - 0Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.3 s
Page LoadsGood (ā‰¤ 1.8 s)90%Needs Improvement (1.8 s - 3 s)7%Poor (> 3 s)3%75th Percentile - 1.3 sĀ 
Time to First Byte (TTFB)
0.8 s
Page LoadsGood (ā‰¤ 0.8 s)75%Needs Improvement (0.8 s - 1.8 s)21%Poor (> 1.8 s)4%75th Percentile - 0.8 sExperimental
Latest 28-day collection periodVarious desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Core Web Vitals Assessment:Ā Passed
Largest Contentful Paint (LCP)
2.2 s
Page LoadsGood (ā‰¤ 2.5 s)79%Needs Improvement (2.5 s - 4 s)11%Poor (> 4 s)10%75th Percentile - 2.2 sCore Web Vital
Interaction to Next Paint (INP)
97 ms
Page LoadsGood (ā‰¤ 200 ms)90%Needs Improvement (200 ms - 500 ms)7%Poor (> 500 ms)3%75th Percentile - 97 msCore Web Vital
Cumulative Layout Shift (CLS)
0.03
Page LoadsGood (ā‰¤ 0.1)88%Needs Improvement (0.1 - 0.25)5%Poor (> 0.25)7%75th Percentile - 0.03Core Web Vital
Other Notable Metrics
First Contentful Paint (FCP)
1.7 s
Page LoadsGood (ā‰¤ 1.8 s)79%Needs Improvement (1.8 s - 3 s)12%Poor (> 3 s)8%75th Percentile - 1.7 sĀ 
Time to First Byte (TTFB)
0.8 s
Page LoadsGood (ā‰¤ 0.8 s)78%Needs Improvement (0.8 s - 1.8 s)18%Poor (> 1.8 s)4%75th Percentile - 0.8 sExperimental
Latest 28-day collection periodVarious desktop devicesMany samples (Chrome UX Report)Full visit durationsVarious network connectionsAll Chrome versions
Diagnose performance issues