Metrics per run

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

Tested 2026-06-23 21:16:13 using Firefox 151.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 417 ms 419 ms 419 ms 417 ms 417 ms417 ms418 ms1 ms0.23 %
Largest Contentful Paint 2.087 s 2.254 s 2.237 s 2.136 s 2.152 s2.152 s2.173 s63 ms2.90 %
Timing metrics
First Paint 991 ms 1.069 s 1.043 s 1.035 s 1.016 s1.035 s1.031 s26 ms2.54 %
Largest Contentful Paint 2.087 s 2.254 s 2.237 s 2.136 s 2.152 s2.152 s2.173 s63 ms2.90 %
Load Event End 1.914 s 1.995 s 2.054 s 1.957 s 1.974 s1.974 s1.979 s46 ms2.33 %
Server Response Time 112 ms 112 ms 112 ms 112 ms 112 ms112 ms112 ms0 ms0.00 %
TTFB 417 ms 419 ms 419 ms 417 ms 417 ms417 ms418 ms1 ms0.23 %
Page Load Time 1.913 s 1.994 s 2.053 s 1.957 s 1.973 s1.973 s1.978 s46 ms2.32 %
First Visual Change 1.034 s 1.100 s 1.067 s 1.067 s 1.067 s1.067 s1.067 s21 ms1.96 %
Last Visual Change 3.200 s 3.267 s 3.267 s 3.200 s 3.267 s3.267 s3.240 s33 ms1.01 %
Speed Index 1.217 s 1.293 s 1.254 s 1.243 s 1.255 s1.254 s1.252 s24 ms1.96 %
Visual Readiness 2.166 s 2.167 s 2.200 s 2.133 s 2.200 s2.167 s2.173 s25 ms1.15 %
Visual Complete 95 2.100 s 2.267 s 2.233 s 2.167 s 2.167 s2.167 s2.187 s58 ms2.66 %
Visual Complete 99 2.100 s 2.267 s 2.233 s 2.167 s 2.167 s2.167 s2.187 s58 ms2.66 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 77 ms 77 ms 77 ms 80 ms77 ms78 ms1 ms1.55 %
Page metrics
DOM elements 8561 8561 8561 8561 85618561856100.00 %
Document height 29448 29448 29448 29448 29448294482944800.00 %
Total Requests 63 62 62 62 62626200.64 %
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 903.7 KB 933.4 KB 931.0 KB 933.2 KB 933.4 KB933.2 KB926.9 KB11.7 KB1.26 %
HTML Transfer Size 128.3 KB 128.3 KB 128.2 KB 128.3 KB 128.3 KB128.3 KB128.3 KB30 B0.02 %
JavaScript Transfer Size 316.0 KB 316.1 KB 315.6 KB 316.0 KB 316.1 KB316.0 KB316.0 KB198 B0.06 %
CSS Transfer Size 27.8 KB 27.8 KB 27.7 KB 27.8 KB 27.8 KB27.8 KB27.8 KB60 B0.21 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.1 KB 2.1 KB 2.0 KB 2.1 KB 2.1 KB2.1 KB2.1 KB30 B1.41 %
Plain Transfer Size 1.0 KB 1.0 KB 973 B 1.0 KB 1.0 KB1.0 KB1.0 KB29 B2.83 %
SVG Transfer Size 91.8 KB 91.8 KB 90.5 KB 91.8 KB 91.8 KB91.8 KB91.6 KB563 B0.60 %
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 %
Plain 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 63 62 62 62 62626200.64 %
First Party Total Transfer Size 903.7 KB 933.4 KB 931.0 KB 933.2 KB 933.4 KB933.2 KB926.9 KB11.7 KB1.26 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %