Metrics per run

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

Tested 2025-08-27 20:53:57 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 497 ms 517 ms 619 ms 515 ms 670 ms517 ms564 ms68 ms12.13 %
First Contentful Paint 1.049 s 1.084 s 1.219 s 1.168 s 1.134 s1.134 s1.131 s60 ms5.31 %
Largest Contentful Paint 2.517 s 2.424 s 2.672 s 2.527 s 2.357 s2.517 s2.499 s107 ms4.27 %
Timing metrics
First Paint 1.283 s 1.323 s 1.459 s 1.412 s 1.379 s1.379 s1.371 s63 ms4.56 %
First Contentful Paint 1.049 s 1.084 s 1.219 s 1.168 s 1.134 s1.134 s1.131 s60 ms5.31 %
Largest Contentful Paint 2.517 s 2.424 s 2.672 s 2.527 s 2.357 s2.517 s2.499 s107 ms4.27 %
Load Event End 2.733 s 2.746 s 2.783 s 2.851 s 2.706 s2.746 s2.764 s50 ms1.81 %
Server Response Time 194 ms 195 ms 193 ms 194 ms 259 ms194 ms207 ms26 ms12.56 %
TTFB 497 ms 517 ms 619 ms 515 ms 670 ms517 ms564 ms68 ms12.13 %
Page Load Time 2.733 s 2.745 s 2.783 s 2.850 s 2.705 s2.745 s2.763 s50 ms1.81 %
First Visual Change 1.333 s 1.400 s 1.500 s 1.467 s 1.433 s1.433 s1.427 s57 ms4.03 %
Last Visual Change 3.600 s 3.566 s 3.733 s 3.633 s 3.733 s3.633 s3.653 s69 ms1.88 %
Speed Index 1.471 s 1.547 s 1.648 s 1.614 s 1.566 s1.566 s1.569 s61 ms3.86 %
Visual Readiness 2.267 s 2.166 s 2.233 s 2.166 s 2.300 s2.233 s2.226 s54 ms2.41 %
Visual Complete 95 2.300 s 2.433 s 2.600 s 2.500 s 2.333 s2.433 s2.433 s110 ms4.50 %
Visual Complete 99 2.533 s 2.566 s 2.600 s 2.633 s 2.467 s2.566 s2.560 s57 ms2.23 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 52 ms 52 ms 52 ms52 ms52 ms0 ms0.77 %
Page metrics
DOM elements 20856 20856 20856 20856 20856208562085600.00 %
Document height 45843 45843 45843 45843 45843458434584300.00 %
Total Requests 64 64 64 64 64646400.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 7 7 7 77700.00 %
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 MB2 B0.00 %
HTML Transfer Size 243.6 KB 243.6 KB 243.6 KB 243.6 KB 243.6 KB243.6 KB243.6 KB0 b0.00 %
JavaScript Transfer Size 368.1 KB 368.1 KB 368.1 KB 368.1 KB 368.1 KB368.1 KB368.1 KB0 b0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.9 KB 1.9 KB 1.9 KB 1.9 KB 1.9 KB1.9 KB1.9 KB0 b0.00 %
SVG Transfer Size 33.0 KB 33.0 KB 33.0 KB 33.0 KB 33.0 KB33.0 KB33.0 KB0 b0.00 %
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 64 64 64 64 64646400.00 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %