Metrics per run

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

Tested 2025-08-31 12:22:20 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 718 ms 512 ms 667 ms 705 ms 518 ms667 ms624 ms91 ms14.52 %
First Contentful Paint 1.338 s 1.101 s 1.576 s 1.304 s 1.050 s1.304 s1.274 s188 ms14.74 %
Largest Contentful Paint 2.688 s 2.696 s 2.373 s 2.644 s 2.115 s2.644 s2.503 s228 ms9.09 %
Timing metrics
First Paint 1.603 s 1.381 s 1.587 s 1.597 s 1.323 s1.587 s1.498 s121 ms8.07 %
First Contentful Paint 1.338 s 1.101 s 1.576 s 1.304 s 1.050 s1.304 s1.274 s188 ms14.74 %
Largest Contentful Paint 2.688 s 2.696 s 2.373 s 2.644 s 2.115 s2.644 s2.503 s228 ms9.09 %
Load Event End 3.531 s 3.034 s 2.453 s 3.350 s 3.026 s3.034 s3.079 s367 ms11.93 %
Server Response Time 249 ms 194 ms 256 ms 241 ms 199 ms241 ms228 ms26 ms11.43 %
TTFB 718 ms 512 ms 667 ms 705 ms 518 ms667 ms624 ms91 ms14.52 %
Page Load Time 3.531 s 3.033 s 2.452 s 3.349 s 3.026 s3.033 s3.078 s367 ms11.94 %
First Visual Change 1.633 s 1.433 s 1.633 s 1.666 s 1.400 s1.633 s1.553 s113 ms7.25 %
Last Visual Change 4.367 s 3.833 s 4.233 s 4.266 s 4.066 s4.233 s4.153 s187 ms4.50 %
Speed Index 1.767 s 1.610 s 1.752 s 1.806 s 1.473 s1.752 s1.682 s124 ms7.35 %
Visual Readiness 2.734 s 2.400 s 2.600 s 2.600 s 2.666 s2.600 s2.600 s112 ms4.29 %
Visual Complete 95 2.433 s 2.700 s 2.400 s 2.633 s 2.000 s2.433 s2.433 s245 ms10.06 %
Visual Complete 99 3.033 s 2.833 s 3.200 s 3.166 s 2.766 s3.033 s3.000 s174 ms5.80 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 52 ms 51 ms 52 ms52 ms52 ms0 ms0.77 %
Page metrics
DOM elements 20836 20836 20836 20836 20836208362083600.00 %
Document height 45815 45815 45815 45815 45815458154581500.00 %
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 243.3 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 KB1 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 1.2 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 %