Metrics per run

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

Tested 2025-07-12 03:52:55 using Firefox 140.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 542 ms 496 ms 603 ms 594 ms 518 ms542 ms551 ms42 ms7.60 %
First Contentful Paint 1.135 s 1.202 s 1.339 s 1.287 s 1.220 s1.220 s1.237 s70 ms5.70 %
Largest Contentful Paint 1.216 s 1.205 s 1.346 s 1.293 s 1.226 s1.226 s1.257 s54 ms4.29 %
Timing metrics
First Paint 1.216 s 1.205 s 1.345 s 1.292 s 1.226 s1.226 s1.257 s54 ms4.26 %
First Contentful Paint 1.135 s 1.202 s 1.339 s 1.287 s 1.220 s1.220 s1.237 s70 ms5.70 %
Largest Contentful Paint 1.216 s 1.205 s 1.346 s 1.293 s 1.226 s1.226 s1.257 s54 ms4.29 %
Load Event End 2.342 s 2.399 s 2.517 s 2.393 s 2.311 s2.393 s2.392 s70 ms2.94 %
Server Response Time 194 ms 194 ms 195 ms 195 ms 195 ms195 ms195 ms0 ms0.25 %
TTFB 542 ms 496 ms 603 ms 594 ms 518 ms542 ms551 ms42 ms7.60 %
Page Load Time 2.342 s 2.399 s 2.516 s 2.392 s 2.310 s2.392 s2.392 s70 ms2.94 %
First Visual Change 1.267 s 1.300 s 1.400 s 1.333 s 1.300 s1.300 s1.320 s45 ms3.42 %
Last Visual Change 3.267 s 3.200 s 3.300 s 3.266 s 3.200 s3.266 s3.247 s40 ms1.23 %
Speed Index 1.294 s 1.326 s 1.427 s 1.360 s 1.326 s1.326 s1.347 s45 ms3.36 %
Visual Readiness 2.000 s 1.900 s 1.900 s 1.933 s 1.900 s1.900 s1.927 s39 ms2.02 %
Visual Complete 95 1.267 s 1.300 s 1.400 s 1.333 s 1.300 s1.300 s1.320 s45 ms3.42 %
Visual Complete 99 2.000 s 2.066 s 2.200 s 2.166 s 2.000 s2.066 s2.086 s83 ms3.99 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 52 ms 53 ms 52 ms 53 ms53 ms53 ms0 ms0.93 %
Page metrics
DOM elements 13484 13484 13484 13484 13484134841348400.00 %
Document height 50619 50619 50619 50619 50619506195061900.00 %
Total Requests 66 66 66 66 66666600.00 %
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 876.7 KB 887.6 KB 887.6 KB 887.3 KB 887.3 KB887.3 KB885.3 KB4.3 KB0.48 %
HTML Transfer Size 194.0 KB 194.0 KB 194.0 KB 194.0 KB 194.0 KB194.0 KB194.0 KB0 b0.00 %
JavaScript Transfer Size 279.3 KB 279.3 KB 279.3 KB 279.3 KB 279.3 KB279.3 KB279.3 KB0 b0.00 %
CSS Transfer Size 26.9 KB 26.9 KB 26.9 KB 26.9 KB 26.9 KB26.9 KB26.9 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 32.9 KB 32.9 KB 32.9 KB 32.9 KB 32.9 KB32.9 KB32.9 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 66 66 66 66 66666600.00 %
First Party Total Transfer Size 876.7 KB 887.6 KB 887.6 KB 887.3 KB 887.3 KB887.3 KB885.3 KB4.3 KB0.48 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %