Metrics per run

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

Tested 2025-08-28 23:57:30 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 580 ms 625 ms 603 ms 497 ms 514 ms580 ms564 ms50 ms8.86 %
First Contentful Paint 1.016 s 1.084 s 1.490 s 914 ms 1.050 s1.050 s1.111 s198 ms17.82 %
Largest Contentful Paint 2.241 s 2.375 s 2.152 s 2.205 s 2.645 s2.241 s2.324 s177 ms7.61 %
Timing metrics
First Paint 1.274 s 1.345 s 1.495 s 1.191 s 1.331 s1.331 s1.327 s100 ms7.52 %
First Contentful Paint 1.016 s 1.084 s 1.490 s 914 ms 1.050 s1.050 s1.111 s198 ms17.82 %
Largest Contentful Paint 2.241 s 2.375 s 2.152 s 2.205 s 2.645 s2.241 s2.324 s177 ms7.61 %
Load Event End 2.936 s 3.101 s 2.306 s 2.655 s 2.860 s2.860 s2.772 s273 ms9.86 %
Server Response Time 195 ms 195 ms 194 ms 193 ms 194 ms194 ms194 ms1 ms0.39 %
TTFB 580 ms 625 ms 603 ms 497 ms 514 ms580 ms564 ms50 ms8.86 %
Page Load Time 2.936 s 3.100 s 2.305 s 2.655 s 2.860 s2.860 s2.771 s273 ms9.87 %
First Visual Change 1.333 s 1.400 s 1.566 s 1.233 s 1.367 s1.367 s1.380 s109 ms7.87 %
Last Visual Change 3.600 s 3.733 s 3.966 s 3.600 s 3.800 s3.733 s3.740 s137 ms3.66 %
Speed Index 1.448 s 1.525 s 1.663 s 1.359 s 1.520 s1.520 s1.503 s100 ms6.66 %
Visual Readiness 2.267 s 2.333 s 2.400 s 2.367 s 2.433 s2.367 s2.360 s57 ms2.42 %
Visual Complete 95 2.133 s 2.267 s 2.166 s 2.100 s 2.433 s2.166 s2.220 s120 ms5.42 %
Visual Complete 99 2.500 s 2.467 s 2.833 s 2.300 s 2.667 s2.500 s2.553 s182 ms7.13 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 52 ms 54 ms 52 ms52 ms52 ms1 ms1.88 %
Page metrics
DOM elements 20855 20855 20855 20855 20855208552085500.00 %
Document height 45895 45895 45895 45895 45895458954589500.00 %
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 MB5 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 368.3 KB 368.3 KB 368.3 KB 368.3 KB 368.3 KB368.3 KB368.3 KB0 b0.00 %
CSS Transfer Size 27.3 KB 27.3 KB 27.3 KB 27.3 KB 27.3 KB27.3 KB27.3 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 33.2 KB 33.2 KB 33.2 KB 33.2 KB 33.2 KB33.2 KB33.2 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 MB5 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %