Metrics per run

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

Tested 2026-04-29 16:15:47 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 723 ms 429 ms 496 ms 408 ms 425 ms429 ms496 ms117 ms23.64 %
First Contentful Paint 1.696 s 937 ms 1.000 s 882 ms 903 ms937 ms1.084 s309 ms28.50 %
Largest Contentful Paint 1.781 s 1.120 s 1.170 s 1.570 s 1.103 s1.170 s1.349 s276 ms20.45 %
Timing metrics
First Paint 1.695 s 936 ms 1.000 s 881 ms 902 ms936 ms1.083 s309 ms28.51 %
First Contentful Paint 1.696 s 937 ms 1.000 s 882 ms 903 ms937 ms1.084 s309 ms28.50 %
Largest Contentful Paint 1.781 s 1.120 s 1.170 s 1.570 s 1.103 s1.170 s1.349 s276 ms20.45 %
Load Event End 2.772 s 1.729 s 1.879 s 1.863 s 1.738 s1.863 s1.996 s393 ms19.68 %
Server Response Time 400 ms 104 ms 104 ms 103 ms 104 ms104 ms163 ms119 ms72.70 %
TTFB 723 ms 429 ms 496 ms 408 ms 425 ms429 ms496 ms117 ms23.64 %
Page Load Time 2.772 s 1.728 s 1.879 s 1.862 s 1.737 s1.862 s1.996 s393 ms19.70 %
First Visual Change 1.766 s 967 ms 1.033 s 966 ms 967 ms967 ms1.140 s314 ms27.56 %
Last Visual Change 4.233 s 2.933 s 3.033 s 2.833 s 2.867 s2.933 s3.180 s531 ms16.70 %
Speed Index 1.815 s 1.008 s 1.070 s 1.022 s 1.007 s1.022 s1.184 s316 ms26.69 %
Visual Readiness 2.467 s 1.966 s 2.000 s 1.867 s 1.900 s1.966 s2.040 s219 ms10.72 %
Visual Complete 95 1.800 s 1.133 s 1.133 s 1.600 s 1.133 s1.133 s1.360 s285 ms20.95 %
Visual Complete 99 3.033 s 1.700 s 1.800 s 1.666 s 1.667 s1.700 s1.973 s532 ms26.97 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 76 ms 76 ms 76 ms76 ms76 ms0 ms0.00 %
Page metrics
DOM elements 5960 5958 5958 5958 59585958595810.01 %
Document height 26229 26229 26229 26229 26229262292622900.00 %
Total Requests 65 58 58 58 58585934.71 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 99900.00 %
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 649.2 KB 644.6 KB 644.6 KB 644.7 KB 644.6 KB644.6 KB645.5 KB1.9 KB0.29 %
HTML Transfer Size 110.4 KB 110.3 KB 110.3 KB 110.3 KB 110.3 KB110.3 KB110.3 KB57 B0.05 %
JavaScript Transfer Size 314.2 KB 313.6 KB 313.6 KB 313.7 KB 313.6 KB313.6 KB313.7 KB233 B0.07 %
CSS Transfer Size 33.9 KB 33.7 KB 33.7 KB 33.7 KB 33.7 KB33.7 KB33.8 KB85 B0.25 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.1 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB37 B1.79 %
Plain Transfer Size 973 B N/A N/A N/A N/A973 B973 B0 b0.00 %
SVG Transfer Size 38.9 KB 36.8 KB 36.8 KB 36.8 KB 36.8 KB36.8 KB37.2 KB860 B2.26 %
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 %
Plain Content Size 0 b N/A N/A N/A N/A0 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 65 58 58 58 58585934.71 %
First Party Total Transfer Size 649.2 KB 644.6 KB 644.6 KB 644.7 KB 644.6 KB644.6 KB645.5 KB1.9 KB0.29 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %