Metrics per run

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

Tested 2025-08-26 17:51:58 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 512 ms 514 ms 516 ms 605 ms 509 ms514 ms531 ms37 ms6.96 %
First Contentful Paint 1.084 s 965 ms 1.067 s 1.016 s 965 ms1.016 s1.019 s50 ms4.88 %
Largest Contentful Paint 2.254 s 2.347 s 2.033 s 2.560 s 2.569 s2.347 s2.353 s201 ms8.54 %
Timing metrics
First Paint 1.322 s 1.218 s 1.321 s 1.271 s 1.245 s1.271 s1.275 s41 ms3.23 %
First Contentful Paint 1.084 s 965 ms 1.067 s 1.016 s 965 ms1.016 s1.019 s50 ms4.88 %
Largest Contentful Paint 2.254 s 2.347 s 2.033 s 2.560 s 2.569 s2.347 s2.353 s201 ms8.54 %
Load Event End 2.791 s 2.553 s 2.857 s 2.976 s 2.890 s2.857 s2.813 s143 ms5.09 %
Server Response Time 194 ms 194 ms 194 ms 195 ms 193 ms194 ms194 ms1 ms0.33 %
TTFB 512 ms 514 ms 516 ms 605 ms 509 ms514 ms531 ms37 ms6.96 %
Page Load Time 2.790 s 2.553 s 2.857 s 2.976 s 2.890 s2.857 s2.813 s143 ms5.09 %
First Visual Change 1.367 s 1.233 s 1.400 s 1.333 s 1.300 s1.333 s1.327 s57 ms4.33 %
Last Visual Change 3.700 s 3.367 s 3.666 s 3.733 s 3.700 s3.700 s3.633 s135 ms3.71 %
Speed Index 1.499 s 1.376 s 1.478 s 1.477 s 1.452 s1.477 s1.456 s43 ms2.94 %
Visual Readiness 2.333 s 2.134 s 2.266 s 2.400 s 2.400 s2.333 s2.307 s100 ms4.32 %
Visual Complete 95 2.267 s 2.233 s 2.000 s 2.433 s 2.433 s2.267 s2.273 s160 ms7.02 %
Visual Complete 99 2.600 s 2.333 s 2.666 s 2.433 s 2.433 s2.433 s2.493 s122 ms4.89 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 51 ms 53 ms 52 ms 52 ms52 ms52 ms1 ms1.43 %
Page metrics
DOM elements 20858 20858 20858 20858 20858208582085800.00 %
Document height 45885 45885 45885 45885 45885458854588500.00 %
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 243.4 KB 243.4 KB 243.4 KB 243.4 KB 243.4 KB243.4 KB243.4 KB0 b0.00 %
JavaScript Transfer Size 370.1 KB 370.1 KB 370.1 KB 370.1 KB 370.1 KB370.1 KB370.1 KB0 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 1.2 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 %