Metrics per run

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

Tested 2026-03-04 10:20:15 using Firefox 147.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 588 ms 589 ms 589 ms 520 ms 516 ms588 ms560 ms35 ms6.18 %
First Contentful Paint 1.154 s 1.180 s 1.165 s 1.092 s 1.093 s1.154 s1.137 s37 ms3.26 %
Largest Contentful Paint 1.806 s 1.713 s 1.628 s 1.559 s 1.591 s1.628 s1.659 s90 ms5.40 %
Timing metrics
First Paint 1.153 s 1.179 s 1.165 s 1.092 s 1.092 s1.153 s1.136 s37 ms3.26 %
First Contentful Paint 1.154 s 1.180 s 1.165 s 1.092 s 1.093 s1.154 s1.137 s37 ms3.26 %
Largest Contentful Paint 1.806 s 1.713 s 1.628 s 1.559 s 1.591 s1.628 s1.659 s90 ms5.40 %
Load Event End 2.360 s 2.038 s 2.080 s 2.261 s 2.317 s2.261 s2.211 s129 ms5.83 %
Server Response Time 195 ms 195 ms 196 ms 195 ms 195 ms195 ms195 ms0 ms0.20 %
TTFB 588 ms 589 ms 589 ms 520 ms 516 ms588 ms560 ms35 ms6.18 %
Page Load Time 2.359 s 2.037 s 2.079 s 2.260 s 2.317 s2.260 s2.210 s129 ms5.84 %
First Visual Change 1.200 s 1.200 s 1.200 s 1.133 s 1.100 s1.200 s1.167 s42 ms3.62 %
Last Visual Change 3.200 s 3.300 s 3.300 s 3.167 s 3.167 s3.200 s3.227 s61 ms1.89 %
Speed Index 1.258 s 1.264 s 1.262 s 1.189 s 1.162 s1.258 s1.227 s43 ms3.50 %
Visual Readiness 2.000 s 2.100 s 2.100 s 2.034 s 2.067 s2.067 s2.060 s39 ms1.88 %
Visual Complete 95 1.800 s 1.733 s 1.633 s 1.567 s 1.600 s1.633 s1.667 s87 ms5.21 %
Visual Complete 99 2.267 s 2.233 s 2.267 s 2.167 s 2.167 s2.233 s2.220 s45 ms2.03 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 78 ms 77 ms 79 ms77 ms77 ms1 ms1.51 %
Page metrics
DOM elements 8952 8952 8952 8952 89528952895200.00 %
Document height 32923 32923 32923 32923 32923329233292300.00 %
Total Requests 57 57 57 57 57575700.00 %
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 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1.9 KB0.17 %
HTML Transfer Size 132.7 KB 132.7 KB 132.7 KB 132.7 KB 132.7 KB132.7 KB132.7 KB0 b0.00 %
JavaScript Transfer Size 309.0 KB 309.0 KB 309.0 KB 309.0 KB 309.0 KB309.0 KB309.0 KB45 B0.01 %
CSS Transfer Size 27.0 KB 27.0 KB 27.0 KB 27.0 KB 27.0 KB27.0 KB27.0 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 87.9 KB 87.9 KB 87.9 KB 87.9 KB 87.9 KB87.9 KB87.9 KB0 b0.00 %
Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Image Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 57 57 57 57 57575700.00 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB1.9 KB0.17 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %