Metrics per run

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

Tested 2025-08-25 14:41:04 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 514 ms 593 ms 496 ms 494 ms 514 ms514 ms522 ms36 ms6.97 %
First Contentful Paint 965 ms 1.051 s 965 ms 966 ms 982 ms966 ms986 ms33 ms3.37 %
Largest Contentful Paint 2.685 s 2.597 s 2.615 s 2.391 s 2.798 s2.615 s2.617 s133 ms5.09 %
Timing metrics
First Paint 1.240 s 1.334 s 1.237 s 1.236 s 1.270 s1.240 s1.263 s37 ms2.97 %
First Contentful Paint 965 ms 1.051 s 965 ms 966 ms 982 ms966 ms986 ms33 ms3.37 %
Largest Contentful Paint 2.685 s 2.597 s 2.615 s 2.391 s 2.798 s2.615 s2.617 s133 ms5.09 %
Load Event End 3.004 s 3.146 s 2.885 s 2.617 s 3.011 s3.004 s2.933 s178 ms6.07 %
Server Response Time 194 ms 273 ms 194 ms 193 ms 194 ms194 ms210 ms32 ms15.13 %
TTFB 514 ms 593 ms 496 ms 494 ms 514 ms514 ms522 ms36 ms6.97 %
Page Load Time 3.004 s 3.146 s 2.885 s 2.617 s 3.011 s3.004 s2.933 s178 ms6.07 %
First Visual Change 1.300 s 1.400 s 1.300 s 1.300 s 1.333 s1.300 s1.327 s39 ms2.93 %
Last Visual Change 3.933 s 4.100 s 4.066 s 4.066 s 4.033 s4.066 s4.040 s57 ms1.42 %
Speed Index 1.479 s 1.545 s 1.463 s 1.465 s 1.540 s1.479 s1.498 s36 ms2.43 %
Visual Readiness 2.633 s 2.700 s 2.766 s 2.766 s 2.700 s2.700 s2.713 s50 ms1.83 %
Visual Complete 95 2.700 s 2.400 s 2.433 s 2.433 s 2.833 s2.433 s2.560 s174 ms6.81 %
Visual Complete 99 2.700 s 3.000 s 2.633 s 2.633 s 2.833 s2.700 s2.760 s141 ms5.09 %
CPU metrics
Browser metrics
CPU benchmark score 54 ms 52 ms 51 ms 51 ms 53 ms52 ms52 ms1 ms2.23 %
Page metrics
DOM elements 20877 20877 20877 20877 20877208772087700.00 %
Document height 45888 45888 45888 45888 45888458884588800.00 %
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 243.7 KB 243.7 KB 243.7 KB 243.7 KB 243.7 KB243.7 KB243.7 KB0 b0.00 %
JavaScript Transfer Size 370.1 KB 370.1 KB 370.1 KB 370.1 KB 370.1 KB370.1 KB370.1 KB1 B0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 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 %