Metrics per run

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

Tested 2025-08-25 23:48:27 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 645 ms 666 ms 669 ms 517 ms 690 ms666 ms637 ms62 ms9.71 %
First Contentful Paint 1.118 s 1.101 s 1.118 s 1.050 s 1.423 s1.118 s1.162 s133 ms11.43 %
Largest Contentful Paint 2.390 s 2.085 s 2.613 s 2.802 s 2.695 s2.613 s2.517 s255 ms10.13 %
Timing metrics
First Paint 1.386 s 1.391 s 1.384 s 1.323 s 1.432 s1.386 s1.383 s35 ms2.52 %
First Contentful Paint 1.118 s 1.101 s 1.118 s 1.050 s 1.423 s1.118 s1.162 s133 ms11.43 %
Largest Contentful Paint 2.390 s 2.085 s 2.613 s 2.802 s 2.695 s2.613 s2.517 s255 ms10.13 %
Load Event End 3.159 s 3.176 s 3.152 s 3.023 s 3.249 s3.159 s3.152 s73 ms2.32 %
Server Response Time 235 ms 228 ms 241 ms 194 ms 270 ms235 ms234 ms24 ms10.45 %
TTFB 645 ms 666 ms 669 ms 517 ms 690 ms666 ms637 ms62 ms9.71 %
Page Load Time 3.159 s 3.175 s 3.151 s 3.023 s 3.249 s3.159 s3.151 s73 ms2.32 %
First Visual Change 1.433 s 1.467 s 1.433 s 1.367 s 1.467 s1.433 s1.433 s37 ms2.55 %
Last Visual Change 3.966 s 4.000 s 4.100 s 3.933 s 4.133 s4.000 s4.026 s77 ms1.92 %
Speed Index 1.579 s 1.566 s 1.605 s 1.564 s 1.614 s1.579 s1.586 s20 ms1.29 %
Visual Readiness 2.533 s 2.533 s 2.667 s 2.566 s 2.666 s2.566 s2.593 s61 ms2.36 %
Visual Complete 95 2.400 s 2.100 s 2.633 s 2.800 s 2.467 s2.467 s2.480 s235 ms9.49 %
Visual Complete 99 2.866 s 2.867 s 2.766 s 2.800 s 2.800 s2.800 s2.820 s40 ms1.42 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 53 ms 53 ms 52 ms52 ms52 ms0 ms0.93 %
Page metrics
DOM elements 20835 20835 20835 20835 20835208352083500.00 %
Document height 45789 45789 45789 45789 45789457894578900.00 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 B0.00 %
HTML Transfer Size 243.1 KB 243.1 KB 243.1 KB 243.1 KB 243.1 KB243.1 KB243.1 KB0 b0.00 %
JavaScript Transfer Size 370.1 KB 370.1 KB 370.1 KB 370.1 KB 370.1 KB370.1 KB370.1 KB0 b0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 KB0 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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %