Metrics per run

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

Tested 2026-06-04 07:52:26 using Firefox 150.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 407 ms 406 ms 407 ms 409 ms 407 ms407 ms407 ms1 ms0.24 %
Largest Contentful Paint 2.305 s 2.550 s 2.520 s 1.830 s 2.504 s2.504 s2.342 s270 ms11.53 %
Timing metrics
First Paint 1.328 s 1.344 s 1.371 s 1.382 s 1.382 s1.371 s1.361 s22 ms1.60 %
Largest Contentful Paint 2.305 s 2.550 s 2.520 s 1.830 s 2.504 s2.504 s2.342 s270 ms11.53 %
Load Event End 2.537 s 2.467 s 2.737 s 2.545 s 2.624 s2.545 s2.582 s92 ms3.57 %
Server Response Time 107 ms 107 ms 106 ms 107 ms 107 ms107 ms107 ms0 ms0.37 %
TTFB 407 ms 406 ms 407 ms 409 ms 407 ms407 ms407 ms1 ms0.24 %
Page Load Time 2.536 s 2.466 s 2.736 s 2.545 s 2.624 s2.545 s2.581 s92 ms3.57 %
First Visual Change 1.400 s 1.400 s 1.400 s 1.433 s 1.433 s1.400 s1.413 s16 ms1.14 %
Last Visual Change 3.800 s 3.733 s 3.767 s 3.867 s 3.833 s3.800 s3.800 s47 ms1.24 %
Speed Index 1.660 s 1.647 s 1.658 s 1.668 s 1.699 s1.660 s1.666 s18 ms1.06 %
Visual Readiness 2.400 s 2.333 s 2.367 s 2.434 s 2.400 s2.400 s2.387 s34 ms1.43 %
Visual Complete 95 2.667 s 2.567 s 2.633 s 2.833 s 2.767 s2.667 s2.693 s95 ms3.53 %
Visual Complete 99 2.733 s 2.633 s 2.733 s 2.833 s 2.800 s2.733 s2.746 s69 ms2.50 %
CPU metrics
Browser metrics
CPU benchmark score 80 ms 79 ms 79 ms 78 ms 79 ms79 ms79 ms1 ms0.80 %
Page metrics
DOM elements 22227 22227 22227 22223 22227222272222620.01 %
Document height 50637 50637 50637 50633 50637506375063620.00 %
Total Requests 64 64 64 66 64646411.24 %
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 1.5 MB 1.5 MB 1.5 MB 1.4 MB 1.5 MB1.5 MB1.5 MB26.6 KB1.77 %
HTML Transfer Size 264.7 KB 264.7 KB 264.7 KB 264.7 KB 264.7 KB264.7 KB264.7 KB0 b0.00 %
JavaScript Transfer Size 312.4 KB 312.5 KB 312.4 KB 311.5 KB 312.4 KB312.4 KB312.2 KB388 B0.12 %
CSS Transfer Size 28.1 KB 28.1 KB 28.1 KB 28.1 KB 28.1 KB28.1 KB28.1 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 82.3 KB 82.3 KB 82.3 KB 89.0 KB 82.3 KB82.3 KB83.6 KB2.7 KB3.22 %
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 66 64646411.24 %
First Party Total Transfer Size 1.5 MB 1.5 MB 1.5 MB 1.4 MB 1.5 MB1.5 MB1.5 MB26.6 KB1.77 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %