Metrics per run

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

Tested 2025-08-27 23:54:22 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 513 ms 638 ms 638 ms 636 ms 586 ms636 ms602 ms49 ms8.11 %
First Contentful Paint 1.066 s 1.118 s 1.118 s 1.118 s 1.219 s1.118 s1.128 s50 ms4.42 %
Largest Contentful Paint 2.477 s 2.339 s 2.254 s 2.453 s 2.576 s2.453 s2.420 s112 ms4.63 %
Timing metrics
First Paint 1.319 s 1.350 s 1.337 s 1.351 s 1.454 s1.350 s1.362 s47 ms3.47 %
First Contentful Paint 1.066 s 1.118 s 1.118 s 1.118 s 1.219 s1.118 s1.128 s50 ms4.42 %
Largest Contentful Paint 2.477 s 2.339 s 2.254 s 2.453 s 2.576 s2.453 s2.420 s112 ms4.63 %
Load Event End 2.829 s 3.085 s 2.962 s 3.047 s 2.885 s2.962 s2.962 s96 ms3.24 %
Server Response Time 194 ms 230 ms 238 ms 233 ms 195 ms230 ms218 ms19 ms8.88 %
TTFB 513 ms 638 ms 638 ms 636 ms 586 ms636 ms602 ms49 ms8.11 %
Page Load Time 2.829 s 3.084 s 2.962 s 3.047 s 2.885 s2.962 s2.961 s96 ms3.23 %
First Visual Change 1.333 s 1.400 s 1.400 s 1.400 s 1.500 s1.400 s1.407 s53 ms3.80 %
Last Visual Change 3.733 s 3.733 s 3.833 s 3.633 s 3.700 s3.733 s3.726 s65 ms1.73 %
Speed Index 1.497 s 1.529 s 1.528 s 1.530 s 1.651 s1.529 s1.547 s53 ms3.46 %
Visual Readiness 2.400 s 2.333 s 2.433 s 2.233 s 2.200 s2.333 s2.320 s91 ms3.92 %
Visual Complete 95 2.500 s 2.266 s 2.266 s 2.333 s 2.567 s2.333 s2.386 s124 ms5.21 %
Visual Complete 99 2.500 s 2.466 s 2.533 s 2.600 s 2.667 s2.533 s2.553 s72 ms2.82 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 51 ms 51 ms 54 ms 52 ms52 ms52 ms1 ms2.11 %
Page metrics
DOM elements 20856 20856 20856 20856 20856208562085600.00 %
Document height 45843 45843 45843 45843 45843458434584300.00 %
Total Requests 64 64 64 64 64646400.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 7 7 7 77700.00 %
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 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB1 B0.00 %
HTML Transfer Size 243.6 KB 243.6 KB 243.6 KB 243.6 KB 243.6 KB243.6 KB243.6 KB0 b0.00 %
JavaScript Transfer Size 368.1 KB 368.1 KB 368.1 KB 368.1 KB 368.1 KB368.1 KB368.1 KB0 b0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 KB1 B0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.9 KB 1.9 KB 1.9 KB 1.9 KB 1.9 KB1.9 KB1.9 KB0 b0.00 %
SVG Transfer Size 32.9 KB 32.9 KB 32.9 KB 32.9 KB 32.9 KB32.9 KB32.9 KB0 b0.00 %
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 64 64646400.00 %
First Party Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %