Metrics per run

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

Tested 2025-12-27 22:28:28 using Firefox 146.0 (script).(runtime settings).

Side by side

Metric1MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 472 ms472 ms472 ms0 ms0.00 %
First Contentful Paint 965 ms965 ms965 ms0 ms0.00 %
Largest Contentful Paint 965 ms965 ms965 ms0 ms0.00 %
Timing metrics
First Paint 964 ms964 ms964 ms0 ms0.00 %
First Contentful Paint 965 ms965 ms965 ms0 ms0.00 %
Largest Contentful Paint 965 ms965 ms965 ms0 ms0.00 %
Load Event End 1.575 s1.575 s1.575 s0 ms0.00 %
Server Response Time 465 ms465 ms465 ms0 ms0.00 %
TTFB 472 ms472 ms472 ms0 ms0.00 %
Page Load Time 1.575 s1.575 s1.575 s0 ms0.00 %
First Visual Change 1.000 s1.000 s1.000 s0 ms0.00 %
Last Visual Change 3.033 s3.033 s3.033 s0 ms0.00 %
Speed Index 1.254 s1.254 s1.254 s0 ms0.00 %
Visual Readiness 2.033 s2.033 s2.033 s0 ms0.00 %
Visual Complete 95 1.800 s1.800 s1.800 s0 ms0.00 %
Visual Complete 99 1.966 s1.966 s1.966 s0 ms0.00 %
CPU metrics
Browser metrics
CPU benchmark score 79 ms79 ms79 ms0 ms0.00 %
Page metrics
DOM elements 13948139481394800.00 %
Document height 31521315213152100.00 %
Total Requests 49494900.00 %
HTML Requests 11100.00 %
JavaScript Requests 44400.00 %
CSS Requests 66600.00 %
Font Requests 00000.00 %
HTTP Errors 0000N/A
Total Transfer Size 600.8 KB600.8 KB600.8 KB0 b0.00 %
HTML Transfer Size 198.4 KB198.4 KB198.4 KB0 b0.00 %
JavaScript Transfer Size 43.6 KB43.6 KB43.6 KB0 b0.00 %
CSS Transfer Size 27.7 KB27.7 KB27.7 KB0 b0.00 %
Font Transfer Size 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 0 b0 b0 b0 b0.00 %
SVG Transfer Size 0 b0 b0 b0 b0.00 %
Total Content Size 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b0 b0 b0 b0.00 %
Image Content Size 0 b0 b0 b0 b0.00 %
Font Content Size 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b0 b0 b0 b0.00 %
SVG Content Size 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 49494900.00 %
First Party Total Transfer Size 600.8 KB600.8 KB600.8 KB0 b0.00 %
First Party Total Content Size 0 b0 b0 b0 b0.00 %