Metrics per run

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

Tested 2025-09-01 03:17:35 using Chrome 139.0.7258.127 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 576 ms 485 ms 505 ms 577 ms 504 ms505 ms529 ms39 ms7.39 %
First Contentful Paint 1.264 s 1.180 s 1.200 s 1.244 s 1.212 s1.212 s1.220 s30 ms2.48 %
Largest Contentful Paint 1.264 s 1.180 s 1.200 s 1.244 s 1.212 s1.212 s1.220 s30 ms2.48 %
Total Blocking Time 106 ms 87 ms 106 ms 81 ms 92 ms92 ms94 ms10 ms10.69 %
Cumulative Layout Shift 0.032 0.032 0.032 0.032 0.0320.0320.03200.00 %
Timing metrics
First Paint 1.264 s 1.180 s 1.200 s 1.244 s 1.212 s1.212 s1.220 s30 ms2.48 %
First Contentful Paint 1.264 s 1.180 s 1.200 s 1.244 s 1.212 s1.212 s1.220 s30 ms2.48 %
Largest Contentful Paint 1.264 s 1.180 s 1.200 s 1.244 s 1.212 s1.212 s1.220 s30 ms2.48 %
Load Event End 2.135 s 2.446 s 2.440 s 2.538 s 2.585 s2.446 s2.429 s157 ms6.46 %
Server Response Time 478 ms 473 ms 471 ms 473 ms 480 ms473 ms475 ms3 ms0.72 %
TTFB 576 ms 485 ms 505 ms 577 ms 504 ms505 ms529 ms39 ms7.39 %
Page Load Time 2.135 s 2.446 s 2.440 s 2.538 s 2.585 s2.446 s2.429 s157 ms6.46 %
First Visual Change 1.233 s 1.166 s 1.166 s 1.233 s 1.200 s1.200 s1.200 s30 ms2.50 %
Last Visual Change 2.833 s 2.333 s 2.433 s 2.366 s 2.433 s2.433 s2.480 s181 ms7.30 %
Speed Index 1.420 s 1.303 s 1.313 s 1.365 s 1.343 s1.343 s1.349 s42 ms3.10 %
Visual Readiness 1.600 s 1.167 s 1.267 s 1.133 s 1.233 s1.233 s1.280 s167 ms13.03 %
Visual Complete 95 2.833 s 2.333 s 2.433 s 2.366 s 2.433 s2.433 s2.480 s181 ms7.30 %
Visual Complete 99 2.833 s 2.333 s 2.433 s 2.366 s 2.433 s2.433 s2.480 s181 ms7.30 %
CPU metrics
Total Blocking Time 106 ms 87 ms 106 ms 81 ms 92 ms92 ms94 ms10 ms10.69 %
Max Potential FID 104 ms 121 ms 103 ms 101 ms 114 ms104 ms109 ms8 ms7.05 %
Number of Long Tasks 4 3 4 4 344013.61 %
Total Duration of Long Tasks 560 ms 499 ms 560 ms 538 ms 512 ms538 ms534 ms25 ms4.65 %
Browser metrics
CPU benchmark score 42 ms 33 ms 36 ms 33 ms 36 ms36 ms36 ms3 ms9.13 %
Page metrics
Cumulative Layout Shift 0.032 0.032 0.032 0.032 0.0320.0320.03200.00 %
DOM elements 13504 13505 13505 13504 13505135051350500.00 %
Document height 46255 46255 46255 46255 46255462554625500.00 %
Total Requests 69 69 69 69 69696900.00 %
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 1011.3 KB 1022.1 KB 1022.1 KB 1022.1 KB 1023.4 KB1022.1 KB1020.2 KB4.5 KB0.44 %
HTML Transfer Size 194.3 KB 194.3 KB 194.3 KB 194.3 KB 194.3 KB194.3 KB194.3 KB0 b0.00 %
JavaScript Transfer Size 369.8 KB 369.7 KB 369.7 KB 369.7 KB 369.7 KB369.7 KB369.7 KB43 B0.01 %
CSS Transfer Size 26.7 KB 26.7 KB 26.7 KB 26.7 KB 26.7 KB26.7 KB26.7 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.7 KB 1.7 KB 1.7 KB 1.7 KB 1.7 KB1.7 KB1.7 KB0 b0.00 %
SVG Transfer Size 34.1 KB 34.1 KB 34.1 KB 34.1 KB 34.1 KB34.1 KB34.1 KB0 b0.00 %
Total Content Size 3.2 MB 3.2 MB 3.2 MB 3.2 MB 3.2 MB3.2 MB3.2 MB4.5 KB0.14 %
HTML Content Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB0 b0.00 %
JavaScript Content Size 1.6 MB 1.6 MB 1.6 MB 1.6 MB 1.6 MB1.6 MB1.6 MB0 b0.00 %
CSS Content Size 192.8 KB 192.8 KB 192.8 KB 192.8 KB 192.8 KB192.8 KB192.8 KB0 b0.00 %
Image Content Size 350.4 KB 361.3 KB 361.3 KB 361.3 KB 362.6 KB361.3 KB359.4 KB4.5 KB1.26 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 2.7 KB 2.7 KB 2.7 KB 2.7 KB 2.7 KB2.7 KB2.7 KB0 b0.00 %
SVG Content Size 38.5 KB 38.5 KB 38.5 KB 38.5 KB 38.5 KB38.5 KB38.5 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 69 69 69 69 69696900.00 %
First Party Total Transfer Size 1011.3 KB 1022.1 KB 1022.1 KB 1022.1 KB 1023.4 KB1022.1 KB1020.2 KB4.5 KB0.44 %
First Party Total Content Size 3.2 MB 3.2 MB 3.2 MB 3.2 MB 3.2 MB3.2 MB3.2 MB4.5 KB0.14 %