Metrics per run

https://en.wikipedia.org/wiki/Taylor_Swift

Tested 2026-06-16 00:59:00 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 417 ms 420 ms 418 ms 419 ms 416 ms418 ms418 ms1 ms0.34 %
Largest Contentful Paint 2.760 s 2.542 s 2.523 s 2.587 s 1.543 s2.542 s2.391 s432 ms18.08 %
Timing metrics
First Paint 1.493 s 1.469 s 1.347 s 1.349 s 1.387 s1.387 s1.409 s61 ms4.33 %
Largest Contentful Paint 2.760 s 2.542 s 2.523 s 2.587 s 1.543 s2.542 s2.391 s432 ms18.08 %
Load Event End 3.103 s 2.901 s 2.528 s 2.919 s 2.737 s2.901 s2.838 s193 ms6.82 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 417 ms 420 ms 418 ms 419 ms 416 ms418 ms418 ms1 ms0.34 %
Page Load Time 3.103 s 2.900 s 2.528 s 2.919 s 2.737 s2.900 s2.837 s193 ms6.81 %
First Visual Change 1.533 s 1.500 s 1.400 s 1.400 s 1.433 s1.433 s1.453 s54 ms3.72 %
Last Visual Change 4.533 s 4.367 s 4.067 s 4.367 s 4.267 s4.367 s4.320 s153 ms3.53 %
Speed Index 1.903 s 1.847 s 1.781 s 1.760 s 1.724 s1.781 s1.803 s64 ms3.55 %
Visual Readiness 3.000 s 2.867 s 2.667 s 2.967 s 2.834 s2.867 s2.867 s117 ms4.09 %
Visual Complete 95 3.500 s 3.300 s 3.100 s 3.300 s 3.267 s3.300 s3.293 s127 ms3.86 %
Visual Complete 99 3.500 s 3.300 s 3.100 s 3.300 s 3.267 s3.300 s3.293 s127 ms3.86 %
CPU metrics
Browser metrics
CPU benchmark score 80 ms 78 ms 78 ms 80 ms 77 ms78 ms79 ms1 ms1.53 %
Page metrics
DOM elements 22283 22283 22283 22283 22283222832228300.00 %
Document height 50780 50780 50780 50780 50780507805078000.00 %
Total Requests 66 66 66 66 66666600.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 8 8 8 8 88800.00 %
CSS Requests 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.9 KB0.15 %
HTML Transfer Size 265.3 KB 265.2 KB 265.3 KB 265.3 KB 265.3 KB265.3 KB265.3 KB30 B0.01 %
JavaScript Transfer Size 307.5 KB 307.1 KB 307.6 KB 307.6 KB 307.6 KB307.6 KB307.5 KB179 B0.06 %
CSS Transfer Size 28.3 KB 28.2 KB 28.3 KB 28.3 KB 28.3 KB28.3 KB28.3 KB60 B0.21 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.1 KB 2.0 KB 2.1 KB 2.1 KB 2.1 KB2.1 KB2.1 KB30 B1.42 %
SVG Transfer Size 90.3 KB 89.0 KB 90.2 KB 90.3 KB 90.3 KB90.3 KB90.0 KB522 B0.57 %
Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Image Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 66 66 66 66 66666600.00 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.9 KB0.15 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %