Metrics per run

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

Tested 2025-08-31 06:17:48 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 511 ms 497 ms 583 ms 585 ms 498 ms511 ms535 ms40 ms7.57 %
First Contentful Paint 931 ms 1.101 s 1.168 s 1.220 s 1.084 s1.101 s1.101 s98 ms8.89 %
Largest Contentful Paint 2.543 s 2.526 s 2.761 s 2.882 s 2.678 s2.678 s2.678 s134 ms5.01 %
Timing metrics
First Paint 1.200 s 1.359 s 1.435 s 1.491 s 1.351 s1.359 s1.367 s98 ms7.18 %
First Contentful Paint 931 ms 1.101 s 1.168 s 1.220 s 1.084 s1.101 s1.101 s98 ms8.89 %
Largest Contentful Paint 2.543 s 2.526 s 2.761 s 2.882 s 2.678 s2.678 s2.678 s134 ms5.01 %
Load Event End 2.749 s 3.046 s 2.942 s 3.151 s 2.890 s2.942 s2.956 s137 ms4.63 %
Server Response Time 194 ms 194 ms 193 ms 194 ms 195 ms194 ms194 ms1 ms0.33 %
TTFB 511 ms 497 ms 583 ms 585 ms 498 ms511 ms535 ms40 ms7.57 %
Page Load Time 2.749 s 3.046 s 2.942 s 3.151 s 2.890 s2.942 s2.956 s137 ms4.63 %
First Visual Change 1.233 s 1.433 s 1.467 s 1.533 s 1.400 s1.433 s1.413 s100 ms7.10 %
Last Visual Change 3.900 s 3.866 s 4.200 s 4.333 s 4.166 s4.166 s4.093 s181 ms4.41 %
Speed Index 1.414 s 1.551 s 1.624 s 1.721 s 1.559 s1.559 s1.574 s100 ms6.38 %
Visual Readiness 2.667 s 2.433 s 2.733 s 2.800 s 2.766 s2.733 s2.680 s131 ms4.89 %
Visual Complete 95 2.533 s 2.533 s 2.667 s 2.900 s 2.600 s2.600 s2.647 s136 ms5.14 %
Visual Complete 99 2.767 s 2.866 s 2.767 s 3.000 s 2.700 s2.767 s2.820 s104 ms3.70 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 52 ms 52 ms 52 ms52 ms52 ms0 ms0.00 %
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 MB2 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 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 KB2 B0.01 %
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 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %