Metrics per run

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

Tested 2026-06-21 12:16:49 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 417 ms 417 ms 417 ms 416 ms 431 ms417 ms420 ms6 ms1.36 %
Largest Contentful Paint 2.686 s 1.780 s 2.475 s 2.475 s 2.540 s2.475 s2.391 s315 ms13.18 %
Timing metrics
First Paint 1.368 s 1.361 s 1.430 s 1.406 s 1.393 s1.393 s1.392 s25 ms1.81 %
Largest Contentful Paint 2.686 s 1.780 s 2.475 s 2.475 s 2.540 s2.475 s2.391 s315 ms13.18 %
Load Event End 2.428 s 2.620 s 2.832 s 2.835 s 2.544 s2.620 s2.652 s160 ms6.05 %
Server Response Time 111 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.36 %
TTFB 417 ms 417 ms 417 ms 416 ms 431 ms417 ms420 ms6 ms1.36 %
Page Load Time 2.428 s 2.619 s 2.831 s 2.834 s 2.544 s2.619 s2.651 s160 ms6.04 %
First Visual Change 1.400 s 1.433 s 1.467 s 1.467 s 1.433 s1.433 s1.440 s25 ms1.74 %
Last Visual Change 3.934 s 4.000 s 4.067 s 4.100 s 3.867 s4.000 s3.994 s85 ms2.13 %
Speed Index 1.729 s 1.700 s 1.798 s 1.813 s 1.760 s1.760 s1.760 s42 ms2.39 %
Visual Readiness 2.534 s 2.567 s 2.600 s 2.633 s 2.434 s2.567 s2.554 s68 ms2.67 %
Visual Complete 95 2.900 s 3.000 s 3.033 s 3.067 s 2.833 s3.000 s2.967 s87 ms2.93 %
Visual Complete 99 2.900 s 3.000 s 3.033 s 3.067 s 2.833 s3.000 s2.967 s87 ms2.93 %
CPU metrics
Browser metrics
CPU benchmark score 79 ms 77 ms 78 ms 80 ms 78 ms78 ms78 ms1 ms1.30 %
Page metrics
DOM elements 22328 22328 22328 22328 22328223282232800.00 %
Document height 50848 50848 50848 50848 50848508485084800.00 %
Total Requests 66 66 66 66 67666600.60 %
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 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB1.1 KB0.08 %
HTML Transfer Size 265.8 KB 265.9 KB 265.8 KB 265.9 KB 265.8 KB265.8 KB265.8 KB36 B0.01 %
JavaScript Transfer Size 311.5 KB 311.8 KB 311.4 KB 311.8 KB 311.4 KB311.5 KB311.6 KB206 B0.06 %
CSS Transfer Size 28.8 KB 29.0 KB 28.8 KB 29.0 KB 28.8 KB28.8 KB28.9 KB72 B0.24 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.1 KB 2.0 KB 2.1 KB 2.0 KB2.0 KB2.0 KB36 B1.75 %
Plain Transfer Size 973 B 1.0 KB 973 B 1.0 KB 973 B973 B1003 B36 B3.62 %
SVG Transfer Size 89.2 KB 90.5 KB 89.2 KB 90.5 KB 89.2 KB89.2 KB89.7 KB653 B0.71 %
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 %
Plain 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 67666600.60 %
First Party Total Transfer Size 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB1.1 KB0.08 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %