Metrics per run

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

Tested 2025-08-27 17:53:59 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 515 ms 572 ms 586 ms 500 ms 610 ms572 ms557 ms42 ms7.57 %
First Contentful Paint 932 ms 1.135 s 1.220 s 914 ms 1.033 s1.033 s1.047 s117 ms11.20 %
Largest Contentful Paint 2.322 s 2.532 s 2.584 s 2.406 s 2.591 s2.532 s2.487 s106 ms4.26 %
Timing metrics
First Paint 1.180 s 1.376 s 1.484 s 1.164 s 1.271 s1.271 s1.295 s121 ms9.35 %
First Contentful Paint 932 ms 1.135 s 1.220 s 914 ms 1.033 s1.033 s1.047 s117 ms11.20 %
Largest Contentful Paint 2.322 s 2.532 s 2.584 s 2.406 s 2.591 s2.532 s2.487 s106 ms4.26 %
Load Event End 2.619 s 3.194 s 2.928 s 2.452 s 3.067 s2.928 s2.852 s277 ms9.71 %
Server Response Time 192 ms 195 ms 195 ms 194 ms 194 ms194 ms194 ms1 ms0.56 %
TTFB 515 ms 572 ms 586 ms 500 ms 610 ms572 ms557 ms42 ms7.57 %
Page Load Time 2.619 s 3.193 s 2.927 s 2.452 s 3.067 s2.927 s2.852 s277 ms9.70 %
First Visual Change 1.233 s 1.433 s 1.533 s 1.200 s 1.333 s1.333 s1.346 s124 ms9.20 %
Last Visual Change 3.367 s 3.700 s 3.867 s 3.467 s 3.633 s3.633 s3.607 s176 ms4.87 %
Speed Index 1.382 s 1.558 s 1.674 s 1.366 s 1.483 s1.483 s1.493 s114 ms7.67 %
Visual Readiness 2.134 s 2.267 s 2.334 s 2.267 s 2.300 s2.267 s2.260 s68 ms3.00 %
Visual Complete 95 2.300 s 2.233 s 2.500 s 2.400 s 2.500 s2.400 s2.387 s107 ms4.47 %
Visual Complete 99 2.300 s 2.666 s 2.600 s 2.400 s 2.533 s2.533 s2.500 s133 ms5.33 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 52 ms 51 ms 54 ms52 ms52 ms1 ms2.11 %
Page metrics
DOM elements 20856 20856 20856 20856 20857208562085600.00 %
Document height 45869 45869 45869 45869 45869458694586900.00 %
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 MB3 B0.00 %
HTML Transfer Size 243.6 KB 243.6 KB 243.6 KB 243.6 KB 243.6 KB243.6 KB243.6 KB0 b0.00 %
JavaScript Transfer Size 370.4 KB 370.4 KB 370.4 KB 370.4 KB 370.4 KB370.4 KB370.4 KB0 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 33.1 KB 33.1 KB 33.1 KB 33.1 KB 33.1 KB33.1 KB33.1 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 MB3 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %