Metrics per run

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

Tested 2025-12-27 20:43:00 using Firefox 146.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 514 ms 516 ms 499 ms 517 ms 514 ms514 ms512 ms7 ms1.29 %
First Contentful Paint 1.209 s 1.205 s 1.189 s 1.198 s 1.210 s1.205 s1.202 s8 ms0.65 %
Largest Contentful Paint 2.335 s 2.308 s 2.329 s 2.322 s 2.308 s2.322 s2.320 s11 ms0.47 %
Timing metrics
First Paint 1.209 s 1.204 s 1.189 s 1.198 s 1.210 s1.204 s1.202 s8 ms0.65 %
First Contentful Paint 1.209 s 1.205 s 1.189 s 1.198 s 1.210 s1.205 s1.202 s8 ms0.65 %
Largest Contentful Paint 2.335 s 2.308 s 2.329 s 2.322 s 2.308 s2.322 s2.320 s11 ms0.47 %
Load Event End 2.235 s 2.210 s 2.235 s 2.055 s 2.212 s2.212 s2.189 s68 ms3.11 %
Server Response Time 195 ms 195 ms 195 ms 194 ms 195 ms195 ms195 ms0 ms0.21 %
TTFB 514 ms 516 ms 499 ms 517 ms 514 ms514 ms512 ms7 ms1.29 %
Page Load Time 2.234 s 2.210 s 2.235 s 2.055 s 2.212 s2.212 s2.189 s68 ms3.10 %
First Visual Change 1.267 s 1.267 s 1.267 s 1.267 s 1.233 s1.267 s1.260 s14 ms1.08 %
Last Visual Change 5.867 s 5.867 s 5.867 s 5.867 s 5.833 s5.867 s5.860 s14 ms0.23 %
Speed Index 1.673 s 1.669 s 1.671 s 1.676 s 1.634 s1.671 s1.665 s15 ms0.93 %
Visual Readiness 4.600 s 4.600 s 4.600 s 4.600 s 4.600 s4.600 s4.600 s0 ms0.00 %
Visual Complete 95 4.067 s 4.067 s 4.067 s 4.067 s 4.033 s4.067 s4.060 s14 ms0.33 %
Visual Complete 99 5.633 s 5.633 s 5.667 s 5.633 s 5.600 s5.633 s5.633 s21 ms0.38 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 79 ms 78 ms 77 ms 77 ms77 ms78 ms1 ms1.03 %
Page metrics
DOM elements 13791 13791 13791 13791 13791137911379100.00 %
Document height 51260 51260 51260 51260 51260512605126000.00 %
Total Requests 68 68 68 68 68686800.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 99900.00 %
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 MB1.4 KB0.13 %
HTML Transfer Size 196.9 KB 196.9 KB 196.9 KB 196.9 KB 196.9 KB196.9 KB196.9 KB0 b0.00 %
JavaScript Transfer Size 377.4 KB 377.3 KB 377.4 KB 377.4 KB 377.4 KB377.4 KB377.4 KB37 B0.01 %
CSS Transfer Size 27.1 KB 27.1 KB 27.1 KB 27.1 KB 27.1 KB27.1 KB27.1 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 %
Plain Transfer Size 683 B 683 B 683 B 683 B 683 B683 B683 B0 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 %
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 68 68 68 68 68686800.00 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1.4 KB0.13 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %