Metrics per run

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

Tested 2025-08-30 00:02:50 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 517 ms 633 ms 513 ms 706 ms 615 ms615 ms597 ms73 ms12.30 %
First Contentful Paint 948 ms 1.322 s 1.151 s 1.186 s 1.236 s1.186 s1.169 s124 ms10.64 %
Largest Contentful Paint 2.627 s 2.636 s 2.683 s 2.559 s 2.896 s2.636 s2.680 s115 ms4.29 %
Timing metrics
First Paint 1.177 s 1.554 s 1.413 s 1.418 s 1.484 s1.418 s1.409 s127 ms9.01 %
First Contentful Paint 948 ms 1.322 s 1.151 s 1.186 s 1.236 s1.186 s1.169 s124 ms10.64 %
Largest Contentful Paint 2.627 s 2.636 s 2.683 s 2.559 s 2.896 s2.636 s2.680 s115 ms4.29 %
Load Event End 2.724 s 3.048 s 3.092 s 3.166 s 3.037 s3.048 s3.013 s152 ms5.03 %
Server Response Time 194 ms 217 ms 194 ms 291 ms 195 ms195 ms218 ms37 ms17.16 %
TTFB 517 ms 633 ms 513 ms 706 ms 615 ms615 ms597 ms73 ms12.30 %
Page Load Time 2.723 s 3.048 s 3.091 s 3.165 s 3.037 s3.048 s3.013 s152 ms5.04 %
First Visual Change 1.200 s 1.600 s 1.467 s 1.467 s 1.566 s1.467 s1.460 s140 ms9.62 %
Last Visual Change 3.400 s 4.000 s 3.733 s 3.667 s 3.966 s3.733 s3.753 s219 ms5.82 %
Speed Index 1.385 s 1.734 s 1.623 s 1.618 s 1.745 s1.623 s1.621 s130 ms7.99 %
Visual Readiness 2.200 s 2.400 s 2.266 s 2.200 s 2.400 s2.266 s2.293 s90 ms3.95 %
Visual Complete 95 2.600 s 2.566 s 2.600 s 2.533 s 2.866 s2.600 s2.633 s119 ms4.52 %
Visual Complete 99 2.600 s 2.866 s 2.600 s 2.667 s 2.866 s2.667 s2.720 s122 ms4.48 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 53 ms 57 ms 51 ms 52 ms53 ms53 ms2 ms3.83 %
Page metrics
DOM elements 20837 20837 20838 20837 20837208372083700.00 %
Document height 45820 45820 45820 45820 45820458204582000.00 %
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 MB8 B0.00 %
HTML Transfer Size 243.2 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.2 KB0 b0.00 %
JavaScript Transfer Size 370.3 KB 370.3 KB 370.3 KB 370.3 KB 370.3 KB370.3 KB370.3 KB8 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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB8 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %