Metrics per run

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

Tested 2025-09-01 03:43:06 using Firefox 142.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 813 ms 639 ms 807 ms 604 ms 582 ms639 ms689 ms100 ms14.58 %
First Contentful Paint 1.423 s 1.321 s 1.355 s 1.321 s 1.305 s1.321 s1.345 s42 ms3.14 %
Largest Contentful Paint 2.609 s 2.475 s 2.576 s 2.508 s 2.356 s2.508 s2.505 s88 ms3.52 %
Timing metrics
First Paint 1.429 s 1.327 s 1.407 s 1.325 s 1.312 s1.327 s1.360 s48 ms3.54 %
First Contentful Paint 1.423 s 1.321 s 1.355 s 1.321 s 1.305 s1.321 s1.345 s42 ms3.14 %
Largest Contentful Paint 2.609 s 2.475 s 2.576 s 2.508 s 2.356 s2.508 s2.505 s88 ms3.52 %
Load Event End 2.709 s 2.504 s 3.157 s 2.505 s 2.531 s2.531 s2.681 s250 ms9.32 %
Server Response Time 293 ms 195 ms 303 ms 247 ms 222 ms247 ms252 ms41 ms16.32 %
TTFB 813 ms 639 ms 807 ms 604 ms 582 ms639 ms689 ms100 ms14.58 %
Page Load Time 2.709 s 2.504 s 3.156 s 2.505 s 2.530 s2.530 s2.681 s250 ms9.31 %
First Visual Change 1.467 s 1.367 s 1.467 s 1.367 s 1.367 s1.367 s1.407 s49 ms3.48 %
Last Visual Change 3.633 s 3.500 s 3.600 s 3.533 s 3.400 s3.533 s3.533 s82 ms2.31 %
Speed Index 1.737 s 1.628 s 1.729 s 1.640 s 1.626 s1.640 s1.672 s50 ms3.00 %
Visual Readiness 2.166 s 2.133 s 2.133 s 2.166 s 2.033 s2.133 s2.126 s49 ms2.30 %
Visual Complete 95 3.200 s 3.067 s 3.167 s 3.200 s 3.167 s3.167 s3.160 s49 ms1.55 %
Visual Complete 99 3.267 s 3.067 s 3.167 s 3.200 s 3.167 s3.167 s3.174 s65 ms2.04 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 53 ms 52 ms 53 ms52 ms52 ms0 ms0.93 %
Page metrics
DOM elements 13516 13516 13516 13516 13516135161351600.00 %
Document height 50638 50638 50638 50638 50638506385063800.00 %
Total Requests 72 72 72 72 72727200.00 %
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 MB4 B0.00 %
HTML Transfer Size 194.4 KB 194.4 KB 194.4 KB 194.4 KB 194.4 KB194.4 KB194.4 KB0 b0.00 %
JavaScript Transfer Size 370.7 KB 370.7 KB 370.7 KB 370.7 KB 370.7 KB370.7 KB370.7 KB1 B0.00 %
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 1.9 KB 1.9 KB 1.9 KB 1.9 KB 1.9 KB1.9 KB1.9 KB0 b0.00 %
JSON Transfer Size 2.3 KB 2.3 KB 2.3 KB 2.3 KB 2.3 KB2.3 KB2.3 KB0 b0.00 %
SVG Transfer Size 38.6 KB 38.6 KB 38.6 KB 38.6 KB 38.6 KB38.6 KB38.6 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 %
JSON 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 72 72 72 72 72727200.00 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB4 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %