Metrics per run

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

Tested 2026-06-23 17:33:41 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 416 ms 422 ms 416 ms 416 ms 415 ms416 ms417 ms3 ms0.61 %
Largest Contentful Paint 2.441 s 2.306 s 2.340 s 1.746 s 2.176 s2.306 s2.202 s243 ms11.04 %
Timing metrics
First Paint 1.398 s 1.382 s 1.360 s 1.345 s 1.364 s1.364 s1.370 s18 ms1.34 %
Largest Contentful Paint 2.441 s 2.306 s 2.340 s 1.746 s 2.176 s2.306 s2.202 s243 ms11.04 %
Load Event End 2.528 s 2.489 s 2.477 s 2.116 s 2.579 s2.489 s2.438 s165 ms6.76 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 416 ms 422 ms 416 ms 416 ms 415 ms416 ms417 ms3 ms0.61 %
Page Load Time 2.528 s 2.489 s 2.476 s 2.116 s 2.578 s2.489 s2.437 s165 ms6.75 %
First Visual Change 1.433 s 1.467 s 1.400 s 1.400 s 1.433 s1.433 s1.427 s25 ms1.75 %
Last Visual Change 4.000 s 4.067 s 3.933 s 3.933 s 4.000 s4.000 s3.987 s50 ms1.26 %
Speed Index 1.769 s 1.781 s 1.722 s 1.650 s 1.746 s1.746 s1.734 s46 ms2.68 %
Visual Readiness 2.567 s 2.600 s 2.533 s 2.533 s 2.567 s2.567 s2.560 s25 ms0.98 %
Visual Complete 95 2.967 s 2.933 s 2.900 s 2.867 s 3.000 s2.933 s2.933 s47 ms1.61 %
Visual Complete 99 2.967 s 2.933 s 2.900 s 2.867 s 3.000 s2.933 s2.933 s47 ms1.61 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 77 ms 77 ms 77 ms 77 ms77 ms77 ms0 ms0.00 %
Page metrics
DOM elements 22328 22328 22328 22328 22328223282232800.00 %
Document height 50848 50848 50848 50848 50848508485084800.00 %
Total Requests 66 67 66 67 67676700.74 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.1 KB0.08 %
HTML Transfer Size 265.9 KB 265.8 KB 265.9 KB 265.8 KB 265.9 KB265.9 KB265.9 KB36 B0.01 %
JavaScript Transfer Size 311.7 KB 311.2 KB 311.7 KB 311.2 KB 311.6 KB311.6 KB311.5 KB250 B0.08 %
CSS Transfer Size 29.0 KB 28.8 KB 29.0 KB 28.8 KB 29.0 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 2.0 KB 2.1 KB 2.0 KB 2.1 KB2.1 KB2.0 KB36 B1.75 %
Plain Transfer Size 1.0 KB 969 B 1.0 KB 973 B 1.0 KB1.0 KB1016 B37 B3.62 %
SVG Transfer Size 90.6 KB 89.3 KB 90.5 KB 89.3 KB 90.6 KB90.5 KB90.0 KB656 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 67 66 67 67676700.74 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.1 KB0.08 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %