Metrics per run

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

Tested 2025-09-17 16:28:01 using Firefox 142.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 517 ms 524 ms 583 ms 503 ms 522 ms522 ms530 ms28 ms5.21 %
First Contentful Paint 932 ms 1.033 s 948 ms 864 ms 966 ms948 ms949 ms55 ms5.75 %
Largest Contentful Paint 1.983 s 1.898 s 1.797 s 1.899 s 1.831 s1.898 s1.882 s64 ms3.41 %
Timing metrics
First Paint 935 ms 1.034 s 949 ms 868 ms 972 ms949 ms952 ms54 ms5.65 %
First Contentful Paint 932 ms 1.033 s 948 ms 864 ms 966 ms948 ms949 ms55 ms5.75 %
Largest Contentful Paint 1.983 s 1.898 s 1.797 s 1.899 s 1.831 s1.898 s1.882 s64 ms3.41 %
Load Event End 2.073 s 2.167 s 2.144 s 2.064 s 1.998 s2.073 s2.089 s60 ms2.89 %
Server Response Time 194 ms 195 ms 206 ms 195 ms 219 ms195 ms202 ms10 ms4.79 %
TTFB 517 ms 524 ms 583 ms 503 ms 522 ms522 ms530 ms28 ms5.21 %
Page Load Time 2.072 s 2.166 s 2.143 s 2.064 s 1.997 s2.072 s2.088 s60 ms2.89 %
First Visual Change 1.000 s 1.100 s 1.000 s 933 ms 1.033 s1.000 s1.013 s54 ms5.35 %
Last Visual Change 3.000 s 2.933 s 2.933 s 2.966 s 2.933 s2.933 s2.953 s27 ms0.91 %
Speed Index 1.157 s 1.221 s 1.127 s 1.099 s 1.159 s1.157 s1.153 s41 ms3.53 %
Visual Readiness 2.000 s 1.833 s 1.933 s 2.033 s 1.900 s1.933 s1.940 s71 ms3.67 %
Visual Complete 95 2.000 s 1.900 s 1.800 s 1.933 s 1.833 s1.900 s1.893 s71 ms3.76 %
Visual Complete 99 2.000 s 1.900 s 1.800 s 1.933 s 1.833 s1.900 s1.893 s71 ms3.76 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 51 ms 52 ms 52 ms 52 ms52 ms52 ms0 ms0.95 %
Page metrics
DOM elements 5300 5300 5300 5301 53005300530000.01 %
Document height 26181 26181 26181 26181 26181261812618100.00 %
Total Requests 62 62 62 62 62626200.00 %
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 618.9 KB 618.9 KB 616.4 KB 616.4 KB 616.4 KB616.4 KB617.4 KB1.2 KB0.20 %
HTML Transfer Size 82.4 KB 82.4 KB 82.4 KB 82.4 KB 82.4 KB82.4 KB82.4 KB0 b0.00 %
JavaScript Transfer Size 291.3 KB 291.3 KB 291.3 KB 291.3 KB 291.3 KB291.3 KB291.3 KB1 B0.00 %
CSS Transfer Size 29.4 KB 29.4 KB 29.4 KB 29.4 KB 29.4 KB29.4 KB29.4 KB9 B0.03 %
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 34.9 KB 34.9 KB 34.9 KB 34.9 KB 34.9 KB34.9 KB34.9 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 62 62 62 62 62626200.00 %
First Party Total Transfer Size 618.9 KB 618.9 KB 616.4 KB 616.4 KB 616.4 KB616.4 KB617.4 KB1.2 KB0.20 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %