Metrics per run

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

Tested 2025-08-29 12:00:34 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 598 ms 497 ms 574 ms 578 ms 576 ms576 ms565 ms35 ms6.18 %
First Contentful Paint 1.033 s 1.135 s 1.151 s 1.168 s 999 ms1.135 s1.097 s68 ms6.20 %
Largest Contentful Paint 2.344 s 2.484 s 2.514 s 2.407 s 2.221 s2.407 s2.394 s105 ms4.38 %
Timing metrics
First Paint 1.265 s 1.387 s 1.396 s 1.413 s 1.233 s1.387 s1.339 s74 ms5.56 %
First Contentful Paint 1.033 s 1.135 s 1.151 s 1.168 s 999 ms1.135 s1.097 s68 ms6.20 %
Largest Contentful Paint 2.344 s 2.484 s 2.514 s 2.407 s 2.221 s2.407 s2.394 s105 ms4.38 %
Load Event End 2.858 s 2.842 s 3.096 s 2.850 s 2.851 s2.851 s2.899 s98 ms3.39 %
Server Response Time 195 ms 194 ms 195 ms 195 ms 195 ms195 ms195 ms0 ms0.21 %
TTFB 598 ms 497 ms 574 ms 578 ms 576 ms576 ms565 ms35 ms6.18 %
Page Load Time 2.857 s 2.841 s 3.096 s 2.850 s 2.851 s2.851 s2.899 s99 ms3.40 %
First Visual Change 1.300 s 1.433 s 1.466 s 1.466 s 1.300 s1.433 s1.393 s77 ms5.52 %
Last Visual Change 3.633 s 3.800 s 3.700 s 3.800 s 3.633 s3.700 s3.713 s75 ms2.02 %
Speed Index 1.434 s 1.585 s 1.595 s 1.600 s 1.432 s1.585 s1.529 s79 ms5.15 %
Visual Readiness 2.333 s 2.367 s 2.234 s 2.334 s 2.333 s2.333 s2.320 s45 ms1.94 %
Visual Complete 95 2.267 s 2.500 s 2.366 s 2.433 s 2.233 s2.366 s2.360 s100 ms4.23 %
Visual Complete 99 2.367 s 2.500 s 2.666 s 2.533 s 2.333 s2.500 s2.480 s120 ms4.85 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 53 ms 52 ms 53 ms52 ms52 ms1 ms1.43 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45820 45820 45820 45820 45820458204582000.00 %
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 MB2 B0.00 %
HTML Transfer Size 243.2 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.2 KB0 b0.00 %
JavaScript Transfer Size 368.2 KB 368.2 KB 368.2 KB 368.2 KB 368.2 KB368.2 KB368.2 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 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %