Metrics per run

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

Tested 2025-08-26 05:49:44 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 635 ms 516 ms 513 ms 513 ms 587 ms516 ms553 ms50 ms9.03 %
First Contentful Paint 1.067 s 931 ms 965 ms 1.355 s 1.016 s1.016 s1.067 s151 ms14.18 %
Largest Contentful Paint 2.729 s 2.526 s 2.686 s 2.768 s 2.323 s2.686 s2.606 s164 ms6.29 %
Timing metrics
First Paint 1.343 s 1.211 s 1.261 s 1.369 s 1.287 s1.287 s1.294 s57 ms4.38 %
First Contentful Paint 1.067 s 931 ms 965 ms 1.355 s 1.016 s1.016 s1.067 s151 ms14.18 %
Largest Contentful Paint 2.729 s 2.526 s 2.686 s 2.768 s 2.323 s2.686 s2.606 s164 ms6.29 %
Load Event End 3.193 s 2.846 s 2.692 s 3.115 s 3.113 s3.113 s2.992 s191 ms6.37 %
Server Response Time 194 ms 194 ms 194 ms 195 ms 195 ms194 ms194 ms0 ms0.25 %
TTFB 635 ms 516 ms 513 ms 513 ms 587 ms516 ms553 ms50 ms9.03 %
Page Load Time 3.193 s 2.846 s 2.691 s 3.114 s 3.113 s3.113 s2.991 s191 ms6.38 %
First Visual Change 1.400 s 1.233 s 1.300 s 1.400 s 1.333 s1.333 s1.333 s63 ms4.75 %
Last Visual Change 3.866 s 3.633 s 3.767 s 3.933 s 3.933 s3.866 s3.826 s114 ms2.98 %
Speed Index 1.571 s 1.414 s 1.457 s 1.591 s 1.484 s1.484 s1.503 s67 ms4.49 %
Visual Readiness 2.466 s 2.400 s 2.467 s 2.533 s 2.600 s2.467 s2.493 s68 ms2.73 %
Visual Complete 95 2.733 s 2.533 s 2.433 s 2.767 s 2.333 s2.533 s2.560 s168 ms6.56 %
Visual Complete 99 2.866 s 2.633 s 2.700 s 2.900 s 2.800 s2.800 s2.780 s100 ms3.60 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 53 ms 52 ms 53 ms 54 ms53 ms53 ms1 ms1.94 %
Page metrics
DOM elements 20835 20835 20835 20835 20835208352083500.00 %
Document height 45789 45789 45789 45789 45789457894578900.00 %
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 243.1 KB 243.1 KB 243.1 KB 243.1 KB 243.1 KB243.1 KB243.1 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 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 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %