Metrics per run

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

Tested 2026-03-27 03:04:52 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 426 ms 425 ms 428 ms 409 ms 446 ms426 ms427 ms12 ms2.75 %
First Contentful Paint 1.376 s 1.352 s 1.367 s 1.546 s 1.332 s1.367 s1.395 s77 ms5.53 %
Largest Contentful Paint 1.376 s 1.352 s 1.367 s 1.546 s 1.332 s1.367 s1.395 s77 ms5.53 %
Timing metrics
First Paint 1.375 s 1.351 s 1.366 s 1.545 s 1.332 s1.366 s1.394 s77 ms5.52 %
First Contentful Paint 1.376 s 1.352 s 1.367 s 1.546 s 1.332 s1.367 s1.395 s77 ms5.53 %
Largest Contentful Paint 1.376 s 1.352 s 1.367 s 1.546 s 1.332 s1.367 s1.395 s77 ms5.53 %
Load Event End 1.795 s 1.890 s 1.800 s 2.295 s 1.810 s1.810 s1.918 s192 ms9.99 %
Server Response Time 105 ms 104 ms 104 ms 104 ms 104 ms104 ms104 ms0 ms0.38 %
TTFB 426 ms 425 ms 428 ms 409 ms 446 ms426 ms427 ms12 ms2.75 %
Page Load Time 1.795 s 1.890 s 1.800 s 2.294 s 1.810 s1.810 s1.918 s191 ms9.97 %
First Visual Change 1.433 s 1.400 s 1.400 s 1.600 s 1.400 s1.400 s1.447 s78 ms5.38 %
Last Visual Change 17.100 s 17.566 s 17.100 s 18.033 s 17.100 s17.100 s17.380 s373 ms2.15 %
Speed Index 1.694 s 1.674 s 1.666 s 1.874 s 1.666 s1.674 s1.715 s80 ms4.68 %
Visual Readiness 15.667 s 16.166 s 15.700 s 16.433 s 15.700 s15.700 s15.933 s311 ms1.95 %
Visual Complete 95 1.433 s 1.400 s 1.400 s 1.600 s 1.400 s1.400 s1.447 s78 ms5.38 %
Visual Complete 99 9.766 s 9.733 s 9.733 s 9.933 s 9.733 s9.733 s9.780 s78 ms0.80 %
CPU metrics
Browser metrics
CPU benchmark score 80 ms 81 ms 79 ms 82 ms 78 ms80 ms80 ms1 ms1.77 %
Page metrics
DOM elements 13672 13672 13673 13673 13672136721367200.00 %
Document height 51299 51299 51299 51299 51299512995129900.00 %
Total Requests 66 66 66 67 66666600.60 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 7 7 7 77700.00 %
CSS Requests 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1.9 KB0.17 %
HTML Transfer Size 200.8 KB 200.8 KB 200.8 KB 200.9 KB 200.8 KB200.8 KB200.8 KB64 B0.03 %
JavaScript Transfer Size 305.3 KB 305.3 KB 305.3 KB 305.7 KB 305.3 KB305.3 KB305.4 KB161 B0.05 %
CSS Transfer Size 27.7 KB 27.7 KB 27.7 KB 27.8 KB 27.7 KB27.7 KB27.7 KB49 B0.17 %
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 2.1 KB 2.0 KB2.0 KB2.0 KB29 B1.40 %
Plain Transfer Size 973 B 973 B 973 B 2.0 KB 973 B973 B1.2 KB419 B35.42 %
SVG Transfer Size 80.5 KB 80.5 KB 80.5 KB 81.8 KB 80.5 KB80.5 KB80.8 KB518 B0.63 %
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 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 66 66 66 67 66666600.60 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1.9 KB0.17 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %