Metrics per run

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

Tested 2025-12-27 18:23:00 using Chrome 143.0.7499.109 (runtime settings).

Side by side

Metric123MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 430 ms 430 ms 536 ms430 ms465 ms50 ms10.74 %
First Contentful Paint 1.052 s 1.040 s 1.164 s1.052 s1.085 s56 ms5.15 %
Largest Contentful Paint 1.392 s 1.432 s 1.540 s1.432 s1.455 s63 ms4.30 %
Total Blocking Time 1.903 s 1.858 s 1.787 s1.858 s1.849 s48 ms2.58 %
Cumulative Layout Shift 0.492 0.492 0.4920.4920.49200.00 %
Timing metrics
First Paint 1.052 s 1.040 s 1.164 s1.052 s1.085 s56 ms5.15 %
First Contentful Paint 1.052 s 1.040 s 1.164 s1.052 s1.085 s56 ms5.15 %
Largest Contentful Paint 1.392 s 1.432 s 1.540 s1.432 s1.455 s63 ms4.30 %
Load Event End 3.929 s 1.908 s 2.030 s2.030 s2.622 s925 ms35.29 %
Server Response Time 461 ms 460 ms 459 ms460 ms460 ms1 ms0.18 %
TTFB 430 ms 430 ms 536 ms430 ms465 ms50 ms10.74 %
Page Load Time 3.926 s 1.908 s 2.030 s2.030 s2.621 s924 ms35.24 %
First Visual Change 1.067 s 1.067 s 1.166 s1.067 s1.100 s47 ms4.24 %
Last Visual Change 12.900 s 13.100 s 12.933 s12.933 s12.978 s88 ms0.67 %
Speed Index 3.487 s 3.543 s 3.565 s3.543 s3.532 s33 ms0.93 %
Visual Readiness 11.833 s 12.033 s 11.767 s11.833 s11.878 s113 ms0.95 %
Visual Complete 95 12.867 s 13.067 s 12.900 s12.900 s12.945 s88 ms0.68 %
Visual Complete 99 12.900 s 13.100 s 12.933 s12.933 s12.978 s88 ms0.67 %
CPU metrics
Total Blocking Time 1.903 s 1.858 s 1.787 s1.858 s1.849 s48 ms2.58 %
Max Potential FID 496 ms 492 ms 429 ms492 ms472 ms31 ms6.50 %
Number of Long Tasks 15 16 15151503.07 %
Total Duration of Long Tasks 2.741 s 2.732 s 2.622 s2.732 s2.698 s54 ms2.00 %
Browser metrics
CPU benchmark score 255 ms 252 ms 248 ms252 ms252 ms3 ms1.14 %
Page metrics
Cumulative Layout Shift 0.492 0.492 0.4920.4920.49200.00 %
DOM elements 11668 11668 11668116681166800.00 %
Document height 4676 4676 46764676467600.00 %
Total Requests 34 34 34343400.00 %
HTML Requests 1 1 11100.00 %
JavaScript Requests 8 8 88800.00 %
CSS Requests 2 2 22200.00 %
Font Requests 0 0 00000.00 %
HTTP Errors 0 0 0000N/A
Total Transfer Size 732.7 KB 732.7 KB 732.7 KB732.7 KB732.7 KB2 B0.00 %
HTML Transfer Size 182.0 KB 182.0 KB 182.0 KB182.0 KB182.0 KB0 b0.00 %
JavaScript Transfer Size 318.8 KB 318.8 KB 318.8 KB318.8 KB318.8 KB1 B0.00 %
CSS Transfer Size 22.3 KB 22.3 KB 22.3 KB22.3 KB22.3 KB1 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 611 B 611 B 611 B611 B611 B0 b0.00 %
SVG Transfer Size 17.1 KB 17.1 KB 17.1 KB17.1 KB17.1 KB0 b0.00 %
Total Content Size 2.4 MB 2.4 MB 2.4 MB2.4 MB2.4 MB1 B0.00 %
HTML Content Size 1005.3 KB 1005.3 KB 1005.3 KB1005.3 KB1005.3 KB0 b0.00 %
JavaScript Content Size 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1 B0.00 %
CSS Content Size 154.4 KB 154.4 KB 154.4 KB154.4 KB154.4 KB0 b0.00 %
Image Content Size 182.1 KB 182.1 KB 182.1 KB182.1 KB182.1 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 10.4 KB 10.4 KB 10.4 KB10.4 KB10.4 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 34 34 34343400.00 %
First Party Total Transfer Size 732.7 KB 732.7 KB 732.7 KB732.7 KB732.7 KB2 B0.00 %
First Party Total Content Size 2.4 MB 2.4 MB 2.4 MB2.4 MB2.4 MB1 B0.00 %