Metrics per run

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

Tested 2026-06-21 16:04:51 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 419 ms 447 ms 442 ms 420 ms 419 ms420 ms429 ms12 ms2.90 %
Largest Contentful Paint 2.340 s 2.494 s 1.491 s 2.641 s 2.439 s2.439 s2.281 s407 ms17.84 %
Timing metrics
First Paint 1.336 s 1.497 s 1.391 s 1.316 s 1.351 s1.351 s1.378 s64 ms4.66 %
Largest Contentful Paint 2.340 s 2.494 s 1.491 s 2.641 s 2.439 s2.439 s2.281 s407 ms17.84 %
Load Event End 2.484 s 2.814 s 2.488 s 2.646 s 2.444 s2.488 s2.575 s138 ms5.36 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 419 ms 447 ms 442 ms 420 ms 419 ms420 ms429 ms12 ms2.90 %
Page Load Time 2.483 s 2.813 s 2.488 s 2.646 s 2.444 s2.488 s2.575 s138 ms5.35 %
First Visual Change 1.367 s 1.533 s 1.433 s 1.367 s 1.400 s1.400 s1.420 s62 ms4.34 %
Last Visual Change 4.034 s 4.200 s 4.033 s 3.900 s 3.900 s4.033 s4.013 s111 ms2.76 %
Speed Index 1.712 s 1.864 s 1.665 s 1.702 s 1.732 s1.712 s1.735 s68 ms3.92 %
Visual Readiness 2.667 s 2.667 s 2.600 s 2.533 s 2.500 s2.600 s2.593 s68 ms2.63 %
Visual Complete 95 2.900 s 3.167 s 2.900 s 2.900 s 2.867 s2.900 s2.947 s111 ms3.76 %
Visual Complete 99 2.900 s 3.167 s 2.900 s 2.900 s 2.867 s2.900 s2.947 s111 ms3.76 %
CPU metrics
Browser metrics
CPU benchmark score 79 ms 77 ms 77 ms 77 ms 82 ms77 ms78 ms2 ms2.50 %
Page metrics
DOM elements 22328 22328 22328 22328 22328223282232800.00 %
Document height 50848 50848 50848 50848 50848508485084800.00 %
Total Requests 66 67 67 66 66666600.74 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 8 8 8 8 88800.00 %
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 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB1.1 KB0.08 %
HTML Transfer Size 265.8 KB 265.8 KB 265.9 KB 265.9 KB 265.8 KB265.8 KB265.8 KB37 B0.01 %
JavaScript Transfer Size 311.5 KB 311.4 KB 311.9 KB 311.9 KB 311.5 KB311.5 KB311.6 KB238 B0.07 %
CSS Transfer Size 28.8 KB 28.8 KB 29.0 KB 29.0 KB 28.8 KB28.8 KB28.9 KB73 B0.25 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.1 KB 2.1 KB 2.0 KB2.0 KB2.0 KB37 B1.77 %
Plain Transfer Size 973 B 973 B 1.0 KB 1.0 KB 973 B973 B1003 B37 B3.66 %
SVG Transfer Size 89.2 KB 89.2 KB 90.5 KB 90.5 KB 89.2 KB89.2 KB89.7 KB661 B0.72 %
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 %
Plain 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 66 67 67 66 66666600.74 %
First Party Total Transfer Size 1.4 MB 1.4 MB 1.4 MB 1.4 MB 1.4 MB1.4 MB1.4 MB1.1 KB0.08 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %