Metrics per run

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

Tested 2026-05-26 03:58:08 using Firefox 150.0.2 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 405 ms 406 ms 406 ms 407 ms 407 ms406 ms406 ms1 ms0.18 %
Largest Contentful Paint 1.543 s 2.204 s 1.578 s 1.493 s 1.192 s1.543 s1.602 s331 ms20.64 %
Timing metrics
First Paint 1.169 s 1.135 s 1.135 s 1.153 s 1.130 s1.135 s1.144 s15 ms1.27 %
Largest Contentful Paint 1.543 s 2.204 s 1.578 s 1.493 s 1.192 s1.543 s1.602 s331 ms20.64 %
Load Event End 1.730 s 1.674 s 1.681 s 1.707 s 1.700 s1.700 s1.698 s20 ms1.17 %
Server Response Time 106 ms 107 ms 106 ms 107 ms 106 ms106 ms106 ms0 ms0.46 %
TTFB 405 ms 406 ms 406 ms 407 ms 407 ms406 ms406 ms1 ms0.18 %
Page Load Time 1.730 s 1.674 s 1.681 s 1.707 s 1.700 s1.700 s1.698 s20 ms1.17 %
First Visual Change 1.200 s 1.167 s 1.167 s 1.167 s 1.200 s1.167 s1.180 s16 ms1.37 %
Last Visual Change 3.300 s 3.233 s 3.300 s 3.267 s 3.300 s3.300 s3.280 s27 ms0.82 %
Speed Index 1.375 s 1.335 s 1.333 s 1.335 s 1.371 s1.335 s1.350 s19 ms1.41 %
Visual Readiness 2.100 s 2.066 s 2.133 s 2.100 s 2.100 s2.100 s2.100 s21 ms1.01 %
Visual Complete 95 2.267 s 2.200 s 2.200 s 2.167 s 2.233 s2.200 s2.213 s34 ms1.53 %
Visual Complete 99 2.267 s 2.200 s 2.200 s 2.167 s 2.233 s2.200 s2.213 s34 ms1.53 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 80 ms 77 ms 77 ms 77 ms77 ms77 ms1 ms1.75 %
Page metrics
DOM elements 8415 8416 8415 8415 84158415841500.00 %
Document height 29228 29228 29228 29228 29228292282922800.00 %
Total Requests 63 62 62 63 62626200.79 %
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 844.7 KB 844.7 KB 844.7 KB 844.7 KB 844.7 KB844.7 KB844.7 KB1 B0.00 %
HTML Transfer Size 127.3 KB 127.3 KB 127.3 KB 127.3 KB 127.3 KB127.3 KB127.3 KB0 b0.00 %
JavaScript Transfer Size 314.8 KB 314.8 KB 314.8 KB 314.8 KB 314.8 KB314.8 KB314.8 KB0 b0.00 %
CSS Transfer Size 26.9 KB 26.9 KB 26.9 KB 26.9 KB 26.9 KB26.9 KB26.9 KB1 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 87.6 KB 87.6 KB 87.6 KB 87.6 KB 87.6 KB87.6 KB87.6 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 63 62 62 63 62626200.79 %
First Party Total Transfer Size 844.7 KB 844.7 KB 844.7 KB 844.7 KB 844.7 KB844.7 KB844.7 KB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %