Metrics per run

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

Tested 2025-06-18 12:00:09 using Firefox 139.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 554 ms 426 ms 427 ms 446 ms 445 ms445 ms460 ms48 ms10.44 %
First Contentful Paint 1.067 s 1.253 s 1.237 s 965 ms 1.237 s1.237 s1.152 s116 ms10.04 %
Largest Contentful Paint 2.272 s 2.503 s 2.451 s 2.205 s 2.354 s2.354 s2.357 s110 ms4.67 %
Timing metrics
First Paint 1.271 s 1.450 s 1.432 s 1.145 s 1.435 s1.432 s1.347 s120 ms8.92 %
First Contentful Paint 1.067 s 1.253 s 1.237 s 965 ms 1.237 s1.237 s1.152 s116 ms10.04 %
Largest Contentful Paint 2.272 s 2.503 s 2.451 s 2.205 s 2.354 s2.354 s2.357 s110 ms4.67 %
Load Event End 2.511 s 2.667 s 2.685 s 2.336 s 2.571 s2.571 s2.554 s126 ms4.94 %
Server Response Time 125 ms 125 ms 125 ms 125 ms 125 ms125 ms125 ms0 ms0.00 %
TTFB 554 ms 426 ms 427 ms 446 ms 445 ms445 ms460 ms48 ms10.44 %
Page Load Time 2.511 s 2.666 s 2.685 s 2.336 s 2.571 s2.571 s2.554 s126 ms4.93 %
First Visual Change 1.300 s 1.533 s 1.500 s 1.200 s 1.500 s1.500 s1.407 s132 ms9.40 %
Last Visual Change 3.433 s 3.600 s 3.600 s 3.300 s 3.600 s3.600 s3.507 s122 ms3.48 %
Speed Index 1.560 s 1.786 s 1.753 s 1.451 s 1.745 s1.745 s1.659 s131 ms7.88 %
Visual Readiness 2.133 s 2.067 s 2.100 s 2.100 s 2.100 s2.100 s2.100 s21 ms0.99 %
Visual Complete 95 2.333 s 2.566 s 2.600 s 2.233 s 2.566 s2.566 s2.460 s148 ms6.02 %
Visual Complete 99 2.333 s 2.600 s 2.700 s 2.233 s 2.600 s2.600 s2.493 s178 ms7.15 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 51 ms 51 ms 51 ms 51 ms51 ms51 ms0 ms0.00 %
Page metrics
DOM elements 22613 22613 22613 22613 22613226132261300.00 %
Document height 51151 51151 51151 51151 51151511515115100.00 %
Total Requests 66 65 65 65 65656500.61 %
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 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB32 B0.00 %
HTML Transfer Size 265.8 KB 265.8 KB 265.8 KB 265.8 KB 265.8 KB265.8 KB265.8 KB0 b0.00 %
JavaScript Transfer Size 285.5 KB 285.5 KB 285.5 KB 285.5 KB 285.5 KB285.5 KB285.5 KB1 B0.00 %
CSS Transfer Size 26.9 KB 26.9 KB 26.9 KB 26.9 KB 26.9 KB26.9 KB26.9 KB0 b0.00 %
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 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 39.5 KB 39.5 KB 39.5 KB 39.5 KB 39.5 KB39.5 KB39.5 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 66 65 65 65 65656500.61 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB32 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %