Metrics per run

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

Tested 2025-08-30 12:08:23 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 682 ms 671 ms 497 ms 639 ms 615 ms639 ms621 ms66 ms10.67 %
First Contentful Paint 1.151 s 1.135 s 914 ms 1.101 s 1.490 s1.135 s1.158 s186 ms16.09 %
Largest Contentful Paint 2.458 s 2.000 s 2.625 s 1.933 s 2.634 s2.458 s2.330 s304 ms13.05 %
Timing metrics
First Paint 1.419 s 1.408 s 1.187 s 1.375 s 1.493 s1.408 s1.376 s102 ms7.43 %
First Contentful Paint 1.151 s 1.135 s 914 ms 1.101 s 1.490 s1.135 s1.158 s186 ms16.09 %
Largest Contentful Paint 2.458 s 2.000 s 2.625 s 1.933 s 2.634 s2.458 s2.330 s304 ms13.05 %
Load Event End 3.215 s 3.197 s 2.795 s 3.127 s 2.853 s3.127 s3.037 s178 ms5.85 %
Server Response Time 274 ms 286 ms 194 ms 275 ms 164 ms274 ms239 ms50 ms20.85 %
TTFB 682 ms 671 ms 497 ms 639 ms 615 ms639 ms621 ms66 ms10.67 %
Page Load Time 3.214 s 3.197 s 2.795 s 3.126 s 2.853 s3.126 s3.037 s177 ms5.84 %
First Visual Change 1.466 s 1.466 s 1.266 s 1.433 s 1.533 s1.466 s1.433 s90 ms6.25 %
Last Visual Change 4.166 s 4.133 s 3.966 s 4.033 s 4.000 s4.033 s4.060 s77 ms1.90 %
Speed Index 1.606 s 1.536 s 1.447 s 1.501 s 1.692 s1.536 s1.556 s85 ms5.47 %
Visual Readiness 2.700 s 2.667 s 2.700 s 2.600 s 2.467 s2.667 s2.627 s88 ms3.34 %
Visual Complete 95 2.466 s 1.966 s 2.533 s 1.867 s 2.633 s2.466 s2.293 s314 ms13.67 %
Visual Complete 99 2.833 s 2.833 s 2.666 s 2.900 s 2.867 s2.833 s2.820 s81 ms2.87 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 52 ms 53 ms 53 ms 51 ms53 ms52 ms1 ms1.53 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45841 45841 45841 45841 45841458414584100.00 %
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 243.3 KB 243.3 KB 243.3 KB 243.3 KB 243.3 KB243.3 KB243.3 KB0 b0.00 %
JavaScript Transfer Size 370.2 KB 370.2 KB 370.2 KB 370.2 KB 370.2 KB370.2 KB370.2 KB0 b0.00 %
CSS Transfer Size 27.3 KB 27.3 KB 27.3 KB 27.3 KB 27.3 KB27.3 KB27.3 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 %