Metrics per run

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

Tested 2025-08-29 02:57:52 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 584 ms 618 ms 603 ms 593 ms 498 ms593 ms579 ms42 ms7.28 %
First Contentful Paint 1.220 s 1.253 s 1.151 s 1.203 s 982 ms1.203 s1.162 s96 ms8.24 %
Largest Contentful Paint 2.699 s 2.665 s 2.446 s 2.254 s 2.528 s2.528 s2.518 s161 ms6.39 %
Timing metrics
First Paint 1.505 s 1.524 s 1.438 s 1.479 s 1.267 s1.479 s1.443 s92 ms6.41 %
First Contentful Paint 1.220 s 1.253 s 1.151 s 1.203 s 982 ms1.203 s1.162 s96 ms8.24 %
Largest Contentful Paint 2.699 s 2.665 s 2.446 s 2.254 s 2.528 s2.528 s2.518 s161 ms6.39 %
Load Event End 2.912 s 3.117 s 3.135 s 2.302 s 2.728 s2.912 s2.839 s307 ms10.81 %
Server Response Time 192 ms 193 ms 194 ms 194 ms 195 ms194 ms194 ms1 ms0.53 %
TTFB 584 ms 618 ms 603 ms 593 ms 498 ms593 ms579 ms42 ms7.28 %
Page Load Time 2.912 s 3.117 s 3.134 s 2.302 s 2.728 s2.912 s2.839 s307 ms10.80 %
First Visual Change 1.567 s 1.567 s 1.467 s 1.566 s 1.300 s1.566 s1.493 s104 ms6.97 %
Last Visual Change 3.867 s 3.933 s 3.933 s 3.966 s 3.667 s3.933 s3.873 s108 ms2.79 %
Speed Index 1.707 s 1.724 s 1.591 s 1.676 s 1.462 s1.676 s1.632 s97 ms5.92 %
Visual Readiness 2.300 s 2.366 s 2.466 s 2.400 s 2.367 s2.367 s2.380 s54 ms2.27 %
Visual Complete 95 2.600 s 2.667 s 2.300 s 2.300 s 2.500 s2.500 s2.473 s151 ms6.11 %
Visual Complete 99 2.600 s 2.667 s 2.667 s 2.833 s 2.500 s2.667 s2.653 s109 ms4.09 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 51 ms 53 ms 52 ms52 ms52 ms1 ms1.22 %
Page metrics
DOM elements 20855 20855 20855 20855 20855208552085500.00 %
Document height 45895 45895 45895 45895 45895458954589500.00 %
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 MB4 B0.00 %
HTML Transfer Size 243.4 KB 243.4 KB 243.4 KB 243.4 KB 243.4 KB243.4 KB243.4 KB0 b0.00 %
JavaScript Transfer Size 368.3 KB 368.3 KB 368.3 KB 368.3 KB 368.3 KB368.3 KB368.3 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 33.2 KB 33.2 KB 33.2 KB 33.2 KB 33.2 KB33.2 KB33.2 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 MB4 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %