Metrics per run

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

Tested 2025-08-29 08:59:49 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 497 ms 514 ms 585 ms 517 ms 597 ms517 ms542 ms41 ms7.52 %
First Contentful Paint 1.016 s 1.152 s 1.186 s 983 ms 1.033 s1.033 s1.074 s80 ms7.44 %
Largest Contentful Paint 2.433 s 2.602 s 2.543 s 2.509 s 2.272 s2.509 s2.472 s114 ms4.61 %
Timing metrics
First Paint 1.249 s 1.391 s 1.448 s 1.220 s 1.266 s1.266 s1.315 s89 ms6.74 %
First Contentful Paint 1.016 s 1.152 s 1.186 s 983 ms 1.033 s1.033 s1.074 s80 ms7.44 %
Largest Contentful Paint 2.433 s 2.602 s 2.543 s 2.509 s 2.272 s2.509 s2.472 s114 ms4.61 %
Load Event End 2.648 s 2.820 s 2.921 s 2.631 s 2.924 s2.820 s2.789 s128 ms4.58 %
Server Response Time 195 ms 194 ms 194 ms 196 ms 194 ms194 ms195 ms1 ms0.41 %
TTFB 497 ms 514 ms 585 ms 517 ms 597 ms517 ms542 ms41 ms7.52 %
Page Load Time 2.647 s 2.820 s 2.921 s 2.631 s 2.923 s2.820 s2.788 s128 ms4.58 %
First Visual Change 1.267 s 1.433 s 1.500 s 1.266 s 1.300 s1.300 s1.353 s96 ms7.07 %
Last Visual Change 3.433 s 3.600 s 3.633 s 3.466 s 3.667 s3.600 s3.560 s93 ms2.62 %
Speed Index 1.414 s 1.584 s 1.646 s 1.428 s 1.436 s1.436 s1.502 s95 ms6.32 %
Visual Readiness 2.166 s 2.167 s 2.133 s 2.200 s 2.367 s2.167 s2.207 s83 ms3.76 %
Visual Complete 95 2.300 s 2.500 s 2.533 s 2.433 s 2.233 s2.433 s2.400 s115 ms4.81 %
Visual Complete 99 2.433 s 2.600 s 2.633 s 2.533 s 2.400 s2.533 s2.520 s91 ms3.61 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 53 ms 52 ms 51 ms 51 ms52 ms52 ms1 ms1.44 %
Page metrics
DOM elements 20837 20837 20837 20838 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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 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 KB0 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 %