Metrics per run

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

Tested 2026-06-22 11:03:47 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 420 ms 417 ms 416 ms 421 ms 419 ms419 ms419 ms2 ms0.44 %
Largest Contentful Paint 2.493 s 2.187 s 2.357 s 1.661 s 2.339 s2.339 s2.207 s290 ms13.13 %
Timing metrics
First Paint 1.362 s 1.431 s 1.359 s 1.380 s 1.415 s1.380 s1.389 s29 ms2.07 %
Largest Contentful Paint 2.493 s 2.187 s 2.357 s 1.661 s 2.339 s2.339 s2.207 s290 ms13.13 %
Load Event End 2.495 s 2.242 s 2.612 s 2.728 s 2.518 s2.518 s2.519 s161 ms6.39 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 420 ms 417 ms 416 ms 421 ms 419 ms419 ms419 ms2 ms0.44 %
Page Load Time 2.495 s 2.242 s 2.612 s 2.727 s 2.518 s2.518 s2.519 s161 ms6.38 %
First Visual Change 1.400 s 1.467 s 1.400 s 1.434 s 1.467 s1.434 s1.434 s30 ms2.09 %
Last Visual Change 3.967 s 4.067 s 3.933 s 4.134 s 3.900 s3.967 s4.000 s87 ms2.18 %
Speed Index 1.747 s 1.775 s 1.726 s 1.694 s 1.778 s1.747 s1.744 s31 ms1.80 %
Visual Readiness 2.567 s 2.600 s 2.533 s 2.700 s 2.433 s2.567 s2.567 s87 ms3.39 %
Visual Complete 95 2.934 s 2.967 s 2.900 s 3.067 s 2.900 s2.934 s2.954 s62 ms2.10 %
Visual Complete 99 2.934 s 2.967 s 2.900 s 3.067 s 2.900 s2.934 s2.954 s62 ms2.10 %
CPU metrics
Browser metrics
CPU benchmark score 78 ms 81 ms 80 ms 91 ms 78 ms80 ms82 ms5 ms5.93 %
Page metrics
DOM elements 22328 22328 22328 22328 22328223282232800.00 %
Document height 50848 50848 50848 50848 50848508485084800.00 %
Total Requests 66 67 67 69 67676711.46 %
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 MB18.7 KB1.32 %
HTML Transfer Size 265.9 KB 265.9 KB 265.8 KB 265.9 KB 265.8 KB265.9 KB265.9 KB37 B0.01 %
JavaScript Transfer Size 312.0 KB 311.9 KB 311.5 KB 311.9 KB 311.6 KB311.9 KB311.8 KB217 B0.07 %
CSS Transfer Size 29.0 KB 29.0 KB 28.8 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 2.1 KB 2.1 KB 2.0 KB 2.1 KB 2.0 KB2.1 KB2.0 KB37 B1.75 %
Plain Transfer Size 1.0 KB 1.0 KB 973 B 2.9 KB 973 B1.0 KB1.4 KB795 B56.48 %
SVG Transfer Size 90.5 KB 90.3 KB 89.2 KB 90.5 KB 89.2 KB90.3 KB89.9 KB633 B0.69 %
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 67 69 67676711.46 %
First Party Total Transfer Size 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB18.7 KB1.32 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %