Metrics per run

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

Tested 2026-03-28 04:03:17 using Chrome 146.0.7680.80 (runtime settings).

Side by side

Metric123MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 416 ms 400 ms 414 ms414 ms410 ms7 ms1.74 %
First Contentful Paint 1.000 s 968 ms 992 ms992 ms987 ms14 ms1.38 %
Largest Contentful Paint 1.456 s 1.436 s 1.456 s1.456 s1.449 s9 ms0.65 %
Total Blocking Time 1.563 s 1.640 s 1.563 s1.563 s1.589 s36 ms2.28 %
Cumulative Layout Shift 0 0 00000.00 %
Timing metrics
First Paint 1.000 s 968 ms 992 ms992 ms987 ms14 ms1.38 %
First Contentful Paint 1.000 s 968 ms 992 ms992 ms987 ms14 ms1.38 %
Largest Contentful Paint 1.456 s 1.436 s 1.456 s1.456 s1.449 s9 ms0.65 %
Load Event End 1.971 s 3.793 s 1.975 s1.975 s2.580 s858 ms33.26 %
Server Response Time 496 ms 496 ms 510 ms496 ms501 ms7 ms1.32 %
TTFB 416 ms 400 ms 414 ms414 ms410 ms7 ms1.74 %
Page Load Time 1.971 s 3.787 s 1.975 s1.975 s2.578 s855 ms33.17 %
First Visual Change 1.000 s 966 ms 1.000 s1.000 s989 ms16 ms1.62 %
Last Visual Change 18.000 s 17.966 s 18.000 s18.000 s17.989 s16 ms0.09 %
Speed Index 2.032 s 1.987 s 2.033 s2.032 s2.017 s21 ms1.06 %
Visual Readiness 17.000 s 17.000 s 17.000 s17.000 s17.000 s0 ms0.00 %
Visual Complete 95 7.033 s 7.033 s 7.067 s7.033 s7.044 s16 ms0.23 %
Visual Complete 99 16.900 s 15.400 s 15.534 s15.534 s15.945 s678 ms4.25 %
CPU metrics
Total Blocking Time 1.563 s 1.640 s 1.563 s1.563 s1.589 s36 ms2.28 %
Max Potential FID 451 ms 499 ms 451 ms451 ms467 ms23 ms4.85 %
Number of Long Tasks 10 10 11101004.56 %
Total Duration of Long Tasks 2.146 s 2.221 s 2.188 s2.188 s2.185 s31 ms1.40 %
Browser metrics
CPU benchmark score 256 ms 254 ms 256 ms256 ms255 ms1 ms0.37 %
Page metrics
Cumulative Layout Shift 0 0 00000.00 %
DOM elements 11515 11515 11515115151151500.00 %
Document height 4649 4649 46494649464900.00 %
Total Requests 32 32 32323200.00 %
HTML Requests 1 1 11100.00 %
JavaScript Requests 6 6 66600.00 %
CSS Requests 2 2 22200.00 %
Font Requests 0 0 00000.00 %
HTTP Errors 0 0 0000N/A
Total Transfer Size 781.5 KB 781.5 KB 781.5 KB781.5 KB781.5 KB1 B0.00 %
HTML Transfer Size 185.8 KB 185.8 KB 185.8 KB185.8 KB185.8 KB0 b0.00 %
JavaScript Transfer Size 246.3 KB 246.3 KB 246.3 KB246.3 KB246.3 KB0 b0.00 %
CSS Transfer Size 23.3 KB 23.3 KB 23.3 KB23.3 KB23.3 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.8 KB 1.8 KB 1.8 KB1.8 KB1.8 KB0 b0.00 %
JSON Transfer Size 1.8 KB 1.8 KB 1.8 KB1.8 KB1.8 KB0 b0.00 %
Plain Transfer Size 881 B 881 B 881 B881 B881 B0 b0.00 %
SVG Transfer Size 18.5 KB 18.5 KB 18.5 KB18.5 KB18.5 KB0 b0.00 %
Total Content Size 2.4 MB 2.4 MB 2.4 MB2.4 MB2.4 MB0 b0.00 %
HTML Content Size 1009.7 KB 1009.7 KB 1009.7 KB1009.7 KB1009.7 KB0 b0.00 %
JavaScript Content Size 938.2 KB 938.2 KB 938.2 KB938.2 KB938.2 KB0 b0.00 %
CSS Content Size 161.6 KB 161.6 KB 161.6 KB161.6 KB161.6 KB0 b0.00 %
Image Content Size 90.1 KB 90.1 KB 90.1 KB90.1 KB90.1 KB0 b0.00 %
Font Content Size 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 2.7 KB 2.7 KB 2.7 KB2.7 KB2.7 KB0 b0.00 %
JSON Content Size 263 B 263 B 263 B263 B263 B0 b0.00 %
Plain Content Size 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 14.0 KB 14.0 KB 14.0 KB14.0 KB14.0 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 32 32 32323200.00 %
First Party Total Transfer Size 781.5 KB 781.5 KB 781.5 KB781.5 KB781.5 KB1 B0.00 %
First Party Total Content Size 2.4 MB 2.4 MB 2.4 MB2.4 MB2.4 MB0 b0.00 %