Metrics per run

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

Tested 2025-08-28 05:55:02 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 597 ms 582 ms 509 ms 513 ms 579 ms579 ms556 ms37 ms6.70 %
First Contentful Paint 1.016 s 1.017 s 999 ms 1.101 s 999 ms1.016 s1.026 s38 ms3.71 %
Largest Contentful Paint 2.330 s 2.475 s 2.607 s 2.258 s 2.257 s2.330 s2.385 s136 ms5.71 %
Timing metrics
First Paint 1.263 s 1.258 s 1.237 s 1.332 s 1.235 s1.258 s1.265 s35 ms2.79 %
First Contentful Paint 1.016 s 1.017 s 999 ms 1.101 s 999 ms1.016 s1.026 s38 ms3.71 %
Largest Contentful Paint 2.330 s 2.475 s 2.607 s 2.258 s 2.257 s2.330 s2.385 s136 ms5.71 %
Load Event End 2.918 s 2.974 s 2.751 s 2.768 s 2.961 s2.918 s2.874 s96 ms3.33 %
Server Response Time 195 ms 195 ms 193 ms 194 ms 195 ms195 ms194 ms1 ms0.41 %
TTFB 597 ms 582 ms 509 ms 513 ms 579 ms579 ms556 ms37 ms6.70 %
Page Load Time 2.918 s 2.974 s 2.751 s 2.767 s 2.961 s2.918 s2.874 s96 ms3.34 %
First Visual Change 1.300 s 1.300 s 1.300 s 1.367 s 1.300 s1.300 s1.313 s27 ms2.04 %
Last Visual Change 3.600 s 3.600 s 3.700 s 3.700 s 3.433 s3.600 s3.607 s98 ms2.71 %
Speed Index 1.436 s 1.440 s 1.473 s 1.443 s 1.394 s1.440 s1.437 s25 ms1.76 %
Visual Readiness 2.300 s 2.300 s 2.400 s 2.333 s 2.133 s2.300 s2.293 s88 ms3.84 %
Visual Complete 95 2.233 s 2.333 s 2.566 s 2.000 s 2.133 s2.233 s2.253 s191 ms8.50 %
Visual Complete 99 2.333 s 2.467 s 2.566 s 2.400 s 2.500 s2.467 s2.453 s80 ms3.28 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 54 ms 53 ms 52 ms 53 ms53 ms53 ms1 ms1.94 %
Page metrics
DOM elements 20856 20856 20856 20856 20856208562085600.00 %
Document height 45843 45843 45843 45843 45843458434584300.00 %
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 MB0 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 368.1 KB 368.1 KB 368.1 KB 368.0 KB 368.1 KB368.1 KB368.1 KB1 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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB0 b0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %