Metrics per run

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

Tested 2025-08-29 21:02:21 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 897 ms 497 ms 515 ms 518 ms 512 ms515 ms588 ms155 ms26.33 %
First Contentful Paint 1.711 s 1.118 s 1.101 s 1.084 s 1.101 s1.101 s1.223 s244 ms19.97 %
Largest Contentful Paint 3.238 s 2.765 s 2.551 s 2.562 s 2.577 s2.577 s2.739 s262 ms9.56 %
Timing metrics
First Paint 1.947 s 1.364 s 1.351 s 1.318 s 1.342 s1.351 s1.464 s242 ms16.51 %
First Contentful Paint 1.711 s 1.118 s 1.101 s 1.084 s 1.101 s1.101 s1.223 s244 ms19.97 %
Largest Contentful Paint 3.238 s 2.765 s 2.551 s 2.562 s 2.577 s2.577 s2.739 s262 ms9.56 %
Load Event End 3.671 s 2.905 s 2.767 s 2.858 s 2.701 s2.858 s2.980 s352 ms11.83 %
Server Response Time 496 ms 195 ms 196 ms 194 ms 194 ms195 ms255 ms121 ms47.26 %
TTFB 897 ms 497 ms 515 ms 518 ms 512 ms515 ms588 ms155 ms26.33 %
Page Load Time 3.671 s 2.904 s 2.766 s 2.857 s 2.700 s2.857 s2.980 s353 ms11.84 %
First Visual Change 1.967 s 1.433 s 1.400 s 1.367 s 1.400 s1.400 s1.513 s228 ms15.05 %
Last Visual Change 4.300 s 3.867 s 3.700 s 3.667 s 3.633 s3.700 s3.833 s247 ms6.44 %
Speed Index 2.129 s 1.608 s 1.544 s 1.522 s 1.554 s1.554 s1.671 s231 ms13.79 %
Visual Readiness 2.333 s 2.434 s 2.300 s 2.300 s 2.233 s2.300 s2.320 s66 ms2.83 %
Visual Complete 95 3.167 s 2.700 s 2.433 s 2.533 s 2.500 s2.533 s2.667 s265 ms9.95 %
Visual Complete 99 3.167 s 2.700 s 2.433 s 2.533 s 2.500 s2.533 s2.667 s265 ms9.95 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 51 ms 52 ms 52 ms 54 ms52 ms52 ms1 ms1.88 %
Page metrics
DOM elements 20838 20837 20837 20837 20837208372083700.00 %
Document height 45820 45820 45820 45820 45820458204582000.00 %
Total Requests 65 64 64 64 64646400.62 %
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 MB1.0 KB0.08 %
HTML Transfer Size 243.3 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.3 KB39 B0.02 %
JavaScript Transfer Size 370.7 KB 370.5 KB 370.5 KB 370.5 KB 370.5 KB370.5 KB370.5 KB79 B0.02 %
CSS Transfer Size 27.4 KB 27.3 KB 27.3 KB 27.3 KB 27.3 KB27.3 KB27.3 KB50 B0.18 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 1.9 KB 1.9 KB 1.9 KB 1.9 KB1.9 KB1.9 KB25 B1.27 %
Plain Transfer Size 906 B N/A N/A N/A N/A906 B906 B0 b0.00 %
SVG Transfer Size 34.0 KB 32.9 KB 32.9 KB 32.9 KB 32.9 KB32.9 KB33.1 KB439 B1.30 %
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 N/A N/A N/A N/A0 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 65 64 64 64 64646400.62 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.0 KB0.08 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %