Metrics per run

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

Tested 2025-06-18 14:45:35 using Chrome 137.0.7151.55 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 419 ms 436 ms 419 ms 419 ms 420 ms419 ms423 ms7 ms1.59 %
First Contentful Paint 1.196 s 1.204 s 1.252 s 1.192 s 1.224 s1.204 s1.214 s22 ms1.82 %
Largest Contentful Paint 1.196 s 1.204 s 1.252 s 1.192 s 1.224 s1.204 s1.214 s22 ms1.82 %
Total Blocking Time 129 ms 140 ms 133 ms 131 ms 132 ms132 ms133 ms4 ms2.81 %
Cumulative Layout Shift 0.031 0.031 0.031 0.031 0.0310.0310.03100.00 %
Timing metrics
First Paint 1.196 s 1.204 s 1.252 s 1.192 s 1.224 s1.204 s1.214 s22 ms1.82 %
First Contentful Paint 1.196 s 1.204 s 1.252 s 1.192 s 1.224 s1.204 s1.214 s22 ms1.82 %
Largest Contentful Paint 1.196 s 1.204 s 1.252 s 1.192 s 1.224 s1.204 s1.214 s22 ms1.82 %
Load Event End 1.584 s 1.602 s 1.686 s 1.573 s 1.576 s1.584 s1.604 s42 ms2.63 %
Server Response Time 500 ms 495 ms 495 ms 480 ms 484 ms495 ms491 ms8 ms1.53 %
TTFB 419 ms 436 ms 419 ms 419 ms 420 ms419 ms423 ms7 ms1.59 %
Page Load Time 1.584 s 1.602 s 1.686 s 1.573 s 1.576 s1.584 s1.604 s42 ms2.63 %
First Visual Change 1.200 s 1.200 s 1.233 s 1.200 s 1.233 s1.200 s1.213 s16 ms1.33 %
Last Visual Change 2.133 s 2.166 s 2.233 s 2.100 s 2.100 s2.133 s2.146 s50 ms2.32 %
Speed Index 1.318 s 1.321 s 1.360 s 1.312 s 1.343 s1.321 s1.331 s18 ms1.35 %
Visual Readiness 933 ms 966 ms 1.000 s 900 ms 867 ms933 ms933 ms47 ms5.03 %
Visual Complete 95 2.133 s 2.166 s 2.233 s 2.100 s 2.100 s2.133 s2.146 s50 ms2.32 %
Visual Complete 99 2.133 s 2.166 s 2.233 s 2.100 s 2.100 s2.133 s2.146 s50 ms2.32 %
CPU metrics
Total Blocking Time 129 ms 140 ms 133 ms 131 ms 132 ms132 ms133 ms4 ms2.81 %
Max Potential FID 117 ms 120 ms 122 ms 127 ms 119 ms120 ms121 ms3 ms2.81 %
Number of Long Tasks 4 4 4 4 44400.00 %
Total Duration of Long Tasks 593 ms 601 ms 629 ms 591 ms 620 ms601 ms607 ms15 ms2.49 %
Browser metrics
CPU benchmark score 42 ms 39 ms 40 ms 40 ms 40 ms40 ms40 ms1 ms2.44 %
Page metrics
Cumulative Layout Shift 0.031 0.031 0.031 0.031 0.0310.0310.03100.00 %
DOM elements 13475 13475 13475 13475 13475134751347500.00 %
Document height 45793 45793 45793 45793 45793457934579300.00 %
Total Requests 70 69 69 69 69696900.58 %
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 893.5 KB 892.9 KB 892.9 KB 892.9 KB 892.9 KB892.9 KB893.0 KB227 B0.02 %
HTML Transfer Size 193.8 KB 193.8 KB 193.8 KB 193.8 KB 193.8 KB193.8 KB193.8 KB0 b0.00 %
JavaScript Transfer Size 281.7 KB 281.7 KB 281.7 KB 281.7 KB 281.7 KB281.7 KB281.7 KB1 B0.00 %
CSS Transfer Size 26.4 KB 26.3 KB 26.3 KB 26.3 KB 26.3 KB26.3 KB26.3 KB10 B0.04 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.8 KB 1.8 KB 1.8 KB 1.8 KB 1.8 KB1.8 KB1.8 KB0 b0.00 %
Plain Transfer Size 546 B N/A N/A N/A N/A546 B546 B0 b0.00 %
SVG Transfer Size 34.8 KB 34.8 KB 34.8 KB 34.8 KB 34.8 KB34.8 KB34.8 KB0 b0.00 %
Total Content Size 2.7 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB2.7 MB2.7 MB0 b0.00 %
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 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB0 b0.00 %
CSS Content Size 189.2 KB 189.2 KB 189.2 KB 189.2 KB 189.2 KB189.2 KB189.2 KB0 b0.00 %
Image Content Size 320.7 KB 320.7 KB 320.7 KB 320.7 KB 320.7 KB320.7 KB320.7 KB0 b0.00 %
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 %
Plain Content Size 0 b N/A N/A N/A N/A0 b0 b0 b0.00 %
SVG Content Size 38.3 KB 38.3 KB 38.3 KB 38.3 KB 38.3 KB38.3 KB38.3 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 70 69 69 69 69696900.58 %
First Party Total Transfer Size 893.5 KB 892.9 KB 892.9 KB 892.9 KB 892.9 KB892.9 KB893.0 KB227 B0.02 %
First Party Total Content Size 2.7 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB2.7 MB2.7 MB0 b0.00 %