Metrics per run

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

Tested 2025-08-26 14:51:05 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 613 ms 510 ms 514 ms 609 ms 560 ms560 ms561 ms44 ms7.90 %
First Contentful Paint 1.118 s 1.067 s 948 ms 1.033 s 982 ms1.033 s1.030 s60 ms5.85 %
Largest Contentful Paint 2.251 s 2.555 s 2.374 s 2.789 s 2.562 s2.555 s2.506 s183 ms7.32 %
Timing metrics
First Paint 1.380 s 1.333 s 1.220 s 1.324 s 1.251 s1.324 s1.302 s58 ms4.46 %
First Contentful Paint 1.118 s 1.067 s 948 ms 1.033 s 982 ms1.033 s1.030 s60 ms5.85 %
Largest Contentful Paint 2.251 s 2.555 s 2.374 s 2.789 s 2.562 s2.555 s2.506 s183 ms7.32 %
Load Event End 3.336 s 3.333 s 2.665 s 3.082 s 3.045 s3.082 s3.092 s246 ms7.95 %
Server Response Time 214 ms 193 ms 195 ms 195 ms 195 ms195 ms198 ms8 ms3.95 %
TTFB 613 ms 510 ms 514 ms 609 ms 560 ms560 ms561 ms44 ms7.90 %
Page Load Time 3.336 s 3.333 s 2.665 s 3.082 s 3.045 s3.082 s3.092 s246 ms7.95 %
First Visual Change 1.466 s 1.367 s 1.267 s 1.400 s 1.300 s1.367 s1.360 s71 ms5.21 %
Last Visual Change 4.166 s 3.933 s 3.800 s 3.833 s 3.733 s3.833 s3.893 s151 ms3.88 %
Speed Index 1.588 s 1.513 s 1.425 s 1.581 s 1.482 s1.513 s1.518 s61 ms4.04 %
Visual Readiness 2.700 s 2.566 s 2.533 s 2.433 s 2.433 s2.533 s2.533 s99 ms3.91 %
Visual Complete 95 2.233 s 2.333 s 2.367 s 2.700 s 2.600 s2.367 s2.447 s175 ms7.14 %
Visual Complete 99 2.866 s 2.800 s 2.467 s 2.800 s 2.733 s2.800 s2.733 s140 ms5.11 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 53 ms 52 ms 51 ms 55 ms52 ms52 ms1 ms2.86 %
Page metrics
DOM elements 20835 20835 20835 20836 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 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB1 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 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 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 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %