Metrics per run

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

Tested 2025-08-30 21:13:36 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 517 ms 658 ms 499 ms 515 ms 695 ms517 ms577 ms82 ms14.30 %
First Contentful Paint 948 ms 1.372 s 1.067 s 1.050 s 1.322 s1.067 s1.152 s165 ms14.35 %
Largest Contentful Paint 2.692 s 2.351 s 2.714 s 2.611 s 3.086 s2.692 s2.691 s236 ms8.77 %
Timing metrics
First Paint 1.229 s 1.375 s 1.337 s 1.333 s 1.597 s1.337 s1.374 s121 ms8.84 %
First Contentful Paint 948 ms 1.372 s 1.067 s 1.050 s 1.322 s1.067 s1.152 s165 ms14.35 %
Largest Contentful Paint 2.692 s 2.351 s 2.714 s 2.611 s 3.086 s2.692 s2.691 s236 ms8.77 %
Load Event End 2.938 s 3.173 s 3.121 s 2.819 s 3.707 s3.121 s3.152 s305 ms9.69 %
Server Response Time 195 ms 265 ms 195 ms 194 ms 281 ms195 ms226 ms39 ms17.13 %
TTFB 517 ms 658 ms 499 ms 515 ms 695 ms517 ms577 ms82 ms14.30 %
Page Load Time 2.938 s 3.172 s 3.121 s 2.818 s 3.707 s3.121 s3.151 s306 ms9.70 %
First Visual Change 1.267 s 1.433 s 1.367 s 1.367 s 1.633 s1.367 s1.413 s122 ms8.63 %
Last Visual Change 4.133 s 3.833 s 4.033 s 3.967 s 4.233 s4.033 s4.040 s137 ms3.40 %
Speed Index 1.467 s 1.516 s 1.543 s 1.540 s 1.792 s1.540 s1.572 s114 ms7.22 %
Visual Readiness 2.866 s 2.400 s 2.666 s 2.600 s 2.600 s2.600 s2.626 s149 ms5.69 %
Visual Complete 95 2.700 s 2.100 s 2.600 s 2.567 s 2.900 s2.600 s2.573 s264 ms10.25 %
Visual Complete 99 2.700 s 2.800 s 2.733 s 2.833 s 3.300 s2.800 s2.873 s219 ms7.61 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 53 ms 53 ms 51 ms 52 ms52 ms52 ms1 ms1.43 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 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 1.3 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 %