Metrics per run

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

Tested 2025-06-18 12:55:09 using Firefox 139.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 427 ms 515 ms 444 ms 445 ms 443 ms444 ms455 ms31 ms6.78 %
First Contentful Paint 796 ms 881 ms 830 ms 813 ms 813 ms813 ms827 ms29 ms3.54 %
Largest Contentful Paint 1.694 s 1.797 s 1.898 s 1.729 s 1.644 s1.729 s1.752 s88 ms5.03 %
Timing metrics
First Paint 798 ms 885 ms 835 ms 816 ms 820 ms820 ms831 ms30 ms3.56 %
First Contentful Paint 796 ms 881 ms 830 ms 813 ms 813 ms813 ms827 ms29 ms3.54 %
Largest Contentful Paint 1.694 s 1.797 s 1.898 s 1.729 s 1.644 s1.729 s1.752 s88 ms5.03 %
Load Event End 1.758 s 1.807 s 2.033 s 1.791 s 1.807 s1.807 s1.839 s99 ms5.36 %
Server Response Time 125 ms 125 ms 125 ms 125 ms 125 ms125 ms125 ms0 ms0.00 %
TTFB 427 ms 515 ms 444 ms 445 ms 443 ms444 ms455 ms31 ms6.78 %
Page Load Time 1.757 s 1.806 s 2.032 s 1.791 s 1.806 s1.806 s1.838 s98 ms5.35 %
First Visual Change 867 ms 966 ms 867 ms 867 ms 867 ms867 ms887 ms40 ms4.47 %
Last Visual Change 2.600 s 2.666 s 2.900 s 2.733 s 2.667 s2.667 s2.713 s102 ms3.78 %
Speed Index 1.021 s 1.118 s 1.054 s 1.025 s 1.013 s1.025 s1.046 s38 ms3.68 %
Visual Readiness 1.733 s 1.700 s 2.033 s 1.866 s 1.800 s1.800 s1.826 s118 ms6.46 %
Visual Complete 95 1.700 s 1.800 s 1.900 s 1.733 s 1.633 s1.733 s1.753 s91 ms5.19 %
Visual Complete 99 1.700 s 1.800 s 1.900 s 1.733 s 1.633 s1.733 s1.753 s91 ms5.19 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 51 ms 51 ms 52 ms 52 ms51 ms51 ms0 ms0.95 %
Page metrics
DOM elements 5595 5594 5594 5594 55945594559400.01 %
Document height 26732 26732 26732 26732 26732267322673200.00 %
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 611.5 KB 611.5 KB 611.4 KB 611.4 KB 611.5 KB611.5 KB611.5 KB35 B0.01 %
HTML Transfer Size 83.2 KB 83.2 KB 83.2 KB 83.2 KB 83.2 KB83.2 KB83.2 KB0 b0.00 %
JavaScript Transfer Size 287.6 KB 287.6 KB 287.6 KB 287.6 KB 287.6 KB287.6 KB287.6 KB1 B0.00 %
CSS Transfer Size 28.9 KB 28.9 KB 28.9 KB 28.9 KB 28.9 KB28.9 KB28.9 KB10 B0.03 %
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 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 611.5 KB 611.5 KB 611.4 KB 611.4 KB 611.5 KB611.5 KB611.5 KB35 B0.01 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %