Metrics per run

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

Tested 2026-06-23 21:36:32 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 420 ms 421 ms 422 ms 417 ms 418 ms420 ms420 ms2 ms0.44 %
Largest Contentful Paint 2.441 s 2.356 s 2.390 s 2.372 s 2.390 s2.390 s2.390 s29 ms1.20 %
Timing metrics
First Paint 1.317 s 1.344 s 1.317 s 1.358 s 1.328 s1.328 s1.333 s16 ms1.20 %
Largest Contentful Paint 2.441 s 2.356 s 2.390 s 2.372 s 2.390 s2.390 s2.390 s29 ms1.20 %
Load Event End 2.435 s 1.910 s 1.928 s 1.936 s 1.918 s1.928 s2.025 s205 ms10.12 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 420 ms 421 ms 422 ms 417 ms 418 ms420 ms420 ms2 ms0.44 %
Page Load Time 2.435 s 1.910 s 1.928 s 1.936 s 1.918 s1.928 s2.025 s205 ms10.12 %
First Visual Change 1.333 s 1.400 s 1.367 s 1.400 s 1.367 s1.367 s1.373 s25 ms1.82 %
Last Visual Change 3.467 s 3.400 s 9.700 s 3.433 s 9.700 s3.467 s5.940 s3.070 s51.69 %
Speed Index 1.514 s 1.562 s 1.755 s 1.562 s 1.828 s1.562 s1.644 s124 ms7.52 %
Visual Readiness 2.134 s 2.000 s 8.333 s 2.033 s 8.333 s2.134 s4.567 s3.076 s67.35 %
Visual Complete 95 2.433 s 2.367 s 2.433 s 2.367 s 2.400 s2.400 s2.400 s30 ms1.23 %
Visual Complete 99 2.433 s 2.367 s 9.700 s 2.367 s 9.700 s2.433 s5.313 s3.582 s67.41 %
CPU metrics
Browser metrics
CPU benchmark score 80 ms 79 ms 78 ms 77 ms 78 ms78 ms78 ms1 ms1.30 %
Page metrics
DOM elements 13722 13722 13722 13722 13722137221372200.00 %
Document height 51566 51566 51566 51566 51566515665156600.00 %
Total Requests 69 69 68 69 68696900.71 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 8 8 8 8 88800.00 %
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 1008.1 KB 1008.0 KB 1008.0 KB 1010.2 KB 1008.0 KB1008.0 KB1008.5 KB898 B0.09 %
HTML Transfer Size 203.5 KB 203.5 KB 203.5 KB 203.6 KB 203.5 KB203.5 KB203.6 KB29 B0.01 %
JavaScript Transfer Size 310.0 KB 310.0 KB 310.0 KB 310.4 KB 310.0 KB310.0 KB310.1 KB174 B0.05 %
CSS Transfer Size 28.7 KB 28.7 KB 28.7 KB 28.9 KB 28.7 KB28.7 KB28.8 KB59 B0.20 %
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 B1.42 %
Plain Transfer Size 973 B 973 B 973 B 1.0 KB 973 B973 B988 B29 B2.96 %
SVG Transfer Size 89.3 KB 89.3 KB 89.3 KB 90.6 KB 89.3 KB89.3 KB89.5 KB526 B0.57 %
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 69 69 68 69 68696900.71 %
First Party Total Transfer Size 1008.1 KB 1008.0 KB 1008.0 KB 1010.2 KB 1008.0 KB1008.0 KB1008.5 KB898 B0.09 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %