Metrics per run

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

Tested 2025-09-17 19:31:47 using Firefox 142.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 599 ms 602 ms 516 ms 623 ms 611 ms602 ms590 ms38 ms6.44 %
First Contentful Paint 965 ms 983 ms 897 ms 982 ms 982 ms982 ms962 ms33 ms3.44 %
Largest Contentful Paint 1.814 s 1.999 s 1.949 s 2.000 s 1.831 s1.949 s1.919 s81 ms4.21 %
Timing metrics
First Paint 966 ms 988 ms 899 ms 986 ms 983 ms983 ms964 ms34 ms3.49 %
First Contentful Paint 965 ms 983 ms 897 ms 982 ms 982 ms982 ms962 ms33 ms3.44 %
Largest Contentful Paint 1.814 s 1.999 s 1.949 s 2.000 s 1.831 s1.949 s1.919 s81 ms4.21 %
Load Event End 1.987 s 1.991 s 2.090 s 2.103 s 1.991 s1.991 s2.032 s53 ms2.58 %
Server Response Time 216 ms 194 ms 194 ms 195 ms 274 ms195 ms215 ms31 ms14.38 %
TTFB 599 ms 602 ms 516 ms 623 ms 611 ms602 ms590 ms38 ms6.44 %
Page Load Time 1.987 s 1.990 s 2.089 s 2.103 s 1.991 s1.991 s2.032 s52 ms2.58 %
First Visual Change 1.000 s 1.066 s 967 ms 1.067 s 1.066 s1.066 s1.033 s42 ms4.06 %
Last Visual Change 2.967 s 2.933 s 3.033 s 3.200 s 3.100 s3.033 s3.047 s96 ms3.14 %
Speed Index 1.134 s 1.205 s 1.124 s 1.219 s 1.196 s1.196 s1.176 s39 ms3.31 %
Visual Readiness 1.967 s 1.867 s 2.066 s 2.133 s 2.034 s2.034 s2.013 s91 ms4.50 %
Visual Complete 95 1.833 s 2.000 s 1.967 s 2.000 s 1.866 s1.967 s1.933 s70 ms3.63 %
Visual Complete 99 1.833 s 2.000 s 1.967 s 2.000 s 1.900 s1.967 s1.940 s65 ms3.34 %
CPU metrics
Browser metrics
CPU benchmark score 55 ms 51 ms 53 ms 54 ms 52 ms53 ms53 ms1 ms2.67 %
Page metrics
DOM elements 5300 5301 5301 5301 53005301530100.01 %
Document height 26181 26181 26181 26181 26181261812618100.00 %
Total Requests 61 61 61 61 61616100.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 10 10 10 10 10101000.00 %
CSS Requests 3 3 3 3 33300.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 617.2 KB 617.1 KB 617.2 KB 617.2 KB 612.9 KB617.2 KB616.3 KB1.7 KB0.28 %
HTML Transfer Size 82.5 KB 82.5 KB 82.5 KB 82.5 KB 82.5 KB82.5 KB82.5 KB0 b0.00 %
JavaScript Transfer Size 291.5 KB 291.4 KB 291.5 KB 291.5 KB 291.5 KB291.5 KB291.5 KB36 B0.01 %
CSS Transfer Size 29.5 KB 29.4 KB 29.4 KB 29.4 KB 29.4 KB29.4 KB29.4 KB11 B0.04 %
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 %
SVG Transfer Size 35.4 KB 35.4 KB 35.4 KB 35.4 KB 35.4 KB35.4 KB35.4 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 61 61 61 61 61616100.00 %
First Party Total Transfer Size 617.2 KB 617.1 KB 617.2 KB 617.2 KB 612.9 KB617.2 KB616.3 KB1.7 KB0.28 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %