Metrics per run

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

Tested 2025-06-18 13:50:42 using Chrome 137.0.7151.55 (runtime settings).

Side by side

Metric123MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 420 ms 436 ms 419 ms420 ms425 ms8 ms1.83 %
First Contentful Paint 1.004 s 1.036 s 1.000 s1.004 s1.013 s16 ms1.59 %
Largest Contentful Paint 1.440 s 1.428 s 1.360 s1.428 s1.409 s35 ms2.50 %
Total Blocking Time 1.399 s 1.347 s 1.493 s1.399 s1.413 s60 ms4.28 %
Cumulative Layout Shift 0 0 00000.00 %
Timing metrics
First Paint 1.004 s 1.036 s 1.000 s1.004 s1.013 s16 ms1.59 %
First Contentful Paint 1.004 s 1.036 s 1.000 s1.004 s1.013 s16 ms1.59 %
Largest Contentful Paint 1.440 s 1.428 s 1.360 s1.428 s1.409 s35 ms2.50 %
Load Event End 1.926 s 1.899 s 1.854 s1.899 s1.893 s30 ms1.57 %
Server Response Time 452 ms 452 ms 451 ms452 ms452 ms0 ms0.10 %
TTFB 420 ms 436 ms 419 ms420 ms425 ms8 ms1.83 %
Page Load Time 1.926 s 1.899 s 1.854 s1.899 s1.893 s30 ms1.57 %
First Visual Change 1.034 s 1.034 s 1.034 s1.034 s1.034 s0 ms0.00 %
Last Visual Change 12.134 s 12.034 s 12.134 s12.134 s12.101 s47 ms0.39 %
Speed Index 2.704 s 2.646 s 2.761 s2.704 s2.704 s47 ms1.74 %
Visual Readiness 11.100 s 11.000 s 11.100 s11.100 s11.067 s47 ms0.43 %
Visual Complete 95 4.134 s 3.767 s 12.100 s4.134 s6.667 s3.845 s57.67 %
Visual Complete 99 12.100 s 12.000 s 12.100 s12.100 s12.067 s47 ms0.39 %
CPU metrics
Total Blocking Time 1.399 s 1.347 s 1.493 s1.399 s1.413 s60 ms4.28 %
Max Potential FID 410 ms 372 ms 401 ms401 ms394 ms16 ms4.11 %
Number of Long Tasks 13 13 13131300.00 %
Total Duration of Long Tasks 2.120 s 2.079 s 2.208 s2.120 s2.136 s54 ms2.52 %
Browser metrics
CPU benchmark score 301 ms 302 ms 302 ms302 ms302 ms0 ms0.16 %
Page metrics
Cumulative Layout Shift 0 0 00000.00 %
DOM elements 11384 11384 11384113841138400.00 %
Document height 4492 4492 44924492449200.00 %
Total Requests 35 35 35353500.00 %
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 577.3 KB 577.3 KB 577.3 KB577.3 KB577.3 KB0 b0.00 %
HTML Transfer Size 179.9 KB 179.9 KB 179.9 KB179.9 KB179.9 KB0 b0.00 %
JavaScript Transfer Size 223.6 KB 223.6 KB 223.6 KB223.6 KB223.6 KB0 b0.00 %
CSS Transfer Size 21.8 KB 21.8 KB 21.8 KB21.8 KB21.8 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 1.6 KB 1.6 KB 1.6 KB1.6 KB1.6 KB0 b0.00 %
SVG Transfer Size 22.2 KB 22.2 KB 22.2 KB22.2 KB22.2 KB0 b0.00 %
Total Content Size 2.1 MB 2.1 MB 2.1 MB2.1 MB2.1 MB0 b0.00 %
HTML Content Size 994.7 KB 994.7 KB 994.7 KB994.7 KB994.7 KB0 b0.00 %
JavaScript Content Size 865.2 KB 865.2 KB 865.2 KB865.2 KB865.2 KB0 b0.00 %
CSS Content Size 152.8 KB 152.8 KB 152.8 KB152.8 KB152.8 KB0 b0.00 %
Image Content Size 119.4 KB 119.4 KB 119.4 KB119.4 KB119.4 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 %
SVG Content Size 25.0 KB 25.0 KB 25.0 KB25.0 KB25.0 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 35 35 35353500.00 %
First Party Total Transfer Size 577.3 KB 577.3 KB 577.3 KB577.3 KB577.3 KB0 b0.00 %
First Party Total Content Size 2.1 MB 2.1 MB 2.1 MB2.1 MB2.1 MB0 b0.00 %