Metrics per run

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

Tested 2026-04-29 19:21:38 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 411 ms 427 ms 426 ms 500 ms 425 ms426 ms438 ms32 ms7.23 %
First Contentful Paint 1.375 s 1.372 s 1.349 s 1.426 s 1.380 s1.375 s1.380 s25 ms1.82 %
Largest Contentful Paint 1.375 s 1.372 s 1.349 s 1.426 s 1.380 s1.375 s1.380 s25 ms1.82 %
Interaction to Next Paint 224 ms 208 ms 264 ms 272 ms 208 ms224 ms235 ms28 ms11.70 %
Timing metrics
First Paint 1.374 s 1.372 s 1.349 s 1.426 s 1.379 s1.374 s1.380 s25 ms1.83 %
First Contentful Paint 1.375 s 1.372 s 1.349 s 1.426 s 1.380 s1.375 s1.380 s25 ms1.82 %
Largest Contentful Paint 1.375 s 1.372 s 1.349 s 1.426 s 1.380 s1.375 s1.380 s25 ms1.82 %
Load Event End 1.780 s 1.799 s 1.790 s 1.857 s 1.788 s1.790 s1.803 s28 ms1.54 %
Server Response Time 104 ms 104 ms 105 ms 105 ms 102 ms104 ms104 ms1 ms1.05 %
TTFB 411 ms 427 ms 426 ms 500 ms 425 ms426 ms438 ms32 ms7.23 %
Page Load Time 1.780 s 1.799 s 1.790 s 1.857 s 1.787 s1.790 s1.803 s28 ms1.55 %
First Visual Change 1.433 s 1.433 s 1.400 s 1.500 s 1.400 s1.433 s1.433 s37 ms2.55 %
Last Visual Change 3.433 s 3.433 s 3.766 s 3.833 s 3.400 s3.433 s3.573 s187 ms5.22 %
Speed Index 1.463 s 1.463 s 1.434 s 1.533 s 1.430 s1.463 s1.465 s37 ms2.52 %
Visual Readiness 2.000 s 2.000 s 2.366 s 2.333 s 2.000 s2.000 s2.140 s172 ms8.02 %
Visual Complete 95 1.433 s 1.433 s 1.400 s 1.500 s 1.400 s1.433 s1.433 s37 ms2.55 %
Visual Complete 99 2.466 s 2.466 s 2.433 s 2.500 s 2.433 s2.466 s2.460 s25 ms1.02 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 79 ms 77 ms 78 ms77 ms77 ms1 ms1.51 %
Page metrics
DOM elements 13650 13650 13650 13651 13650136501365000.00 %
Document height 51268 51268 51268 51268 51268512685126800.00 %
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 932.1 KB 932.1 KB 932.1 KB 932.2 KB 932.1 KB932.1 KB932.1 KB29 B0.00 %
HTML Transfer Size 200.8 KB 200.8 KB 200.8 KB 200.8 KB 200.8 KB200.8 KB200.8 KB0 b0.00 %
JavaScript Transfer Size 302.3 KB 302.3 KB 302.3 KB 302.4 KB 302.3 KB302.3 KB302.4 KB29 B0.01 %
CSS Transfer Size 27.5 KB 27.5 KB 27.5 KB 27.5 KB 27.5 KB27.5 KB27.5 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 81.6 KB 81.6 KB 81.6 KB 81.6 KB 81.6 KB81.6 KB81.6 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 932.1 KB 932.1 KB 932.1 KB 932.2 KB 932.1 KB932.1 KB932.1 KB29 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %