Metrics per run

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

Tested 2026-06-21 04:40:47 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 417 ms 425 ms 441 ms 419 ms 416 ms419 ms424 ms9 ms2.18 %
Largest Contentful Paint 2.488 s 2.272 s 2.635 s 2.390 s 2.459 s2.459 s2.449 s119 ms4.87 %
Timing metrics
First Paint 1.368 s 1.374 s 1.410 s 1.320 s 1.394 s1.374 s1.373 s30 ms2.22 %
Largest Contentful Paint 2.488 s 2.272 s 2.635 s 2.390 s 2.459 s2.459 s2.449 s119 ms4.87 %
Load Event End 2.493 s 2.204 s 2.638 s 2.598 s 2.579 s2.579 s2.502 s157 ms6.26 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 417 ms 425 ms 441 ms 419 ms 416 ms419 ms424 ms9 ms2.18 %
Page Load Time 2.492 s 2.204 s 2.638 s 2.598 s 2.579 s2.579 s2.502 s157 ms6.26 %
First Visual Change 1.434 s 1.433 s 1.467 s 1.367 s 1.434 s1.434 s1.427 s33 ms2.29 %
Last Visual Change 3.934 s 4.033 s 4.167 s 3.900 s 4.167 s4.033 s4.040 s112 ms2.78 %
Speed Index 1.756 s 1.754 s 1.797 s 1.686 s 1.772 s1.756 s1.753 s37 ms2.10 %
Visual Readiness 2.500 s 2.600 s 2.700 s 2.533 s 2.733 s2.600 s2.613 s91 ms3.48 %
Visual Complete 95 2.934 s 3.000 s 3.033 s 2.867 s 3.034 s3.000 s2.974 s65 ms2.17 %
Visual Complete 99 2.934 s 3.000 s 3.033 s 2.867 s 3.034 s3.000 s2.974 s65 ms2.17 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 77 ms 78 ms 80 ms 77 ms77 ms78 ms1 ms1.50 %
Page metrics
DOM elements 22328 22328 22328 22328 22328223282232800.00 %
Document height 50848 50848 50848 50848 50848508485084800.00 %
Total Requests 66 67 68 66 66666711.20 %
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 MB1.5 KB0.10 %
HTML Transfer Size 265.9 KB 265.9 KB 265.9 KB 265.9 KB 265.9 KB265.9 KB265.9 KB36 B0.01 %
JavaScript Transfer Size 311.5 KB 311.8 KB 311.8 KB 311.8 KB 311.5 KB311.8 KB311.7 KB173 B0.05 %
CSS Transfer Size 28.8 KB 29.0 KB 29.0 KB 29.0 KB 28.8 KB29.0 KB28.9 KB73 B0.25 %
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 2.1 KB 2.1 KB 2.0 KB2.1 KB2.0 KB36 B1.74 %
Plain Transfer Size 973 B 1.0 KB 2.9 KB 1.0 KB 973 B1.0 KB1.4 KB794 B56.50 %
SVG Transfer Size 89.2 KB 90.3 KB 90.5 KB 90.3 KB 89.2 KB90.3 KB89.9 KB595 B0.65 %
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 67 68 66 66666711.20 %
First Party Total Transfer Size 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB1.5 KB0.10 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %