Metrics per run

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

Tested 2025-12-27 20:15:50 using Firefox 146.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 520 ms 515 ms 498 ms 521 ms 521 ms520 ms515 ms9 ms1.71 %
First Contentful Paint 1.243 s 1.250 s 1.210 s 1.239 s 1.264 s1.243 s1.241 s18 ms1.43 %
Largest Contentful Paint 1.831 s 1.250 s 1.559 s 1.425 s 1.264 s1.425 s1.466 s215 ms14.66 %
Interaction to Next Paint 176 ms 232 ms 176 ms NaN s 176 ms176 ms190 ms24 ms12.76 %
Timing metrics
First Paint 1.242 s 1.250 s 1.210 s 1.239 s 1.264 s1.242 s1.241 s18 ms1.43 %
First Contentful Paint 1.243 s 1.250 s 1.210 s 1.239 s 1.264 s1.243 s1.241 s18 ms1.43 %
Largest Contentful Paint 1.831 s 1.250 s 1.559 s 1.425 s 1.264 s1.425 s1.466 s215 ms14.66 %
Load Event End 2.197 s 2.365 s 1.705 s 1.726 s 1.711 s1.726 s1.941 s283 ms14.58 %
Server Response Time 195 ms 195 ms 195 ms 195 ms 195 ms195 ms195 ms0 ms0.00 %
TTFB 520 ms 515 ms 498 ms 521 ms 521 ms520 ms515 ms9 ms1.71 %
Page Load Time 2.197 s 2.365 s 1.704 s 1.725 s 1.710 s1.725 s1.940 s283 ms14.61 %
First Visual Change 1.300 s 1.300 s 1.267 s 1.267 s 1.333 s1.300 s1.293 s25 ms1.91 %
Last Visual Change 6.000 s 5.933 s 6.000 s 6.000 s 5.967 s6.000 s5.980 s27 ms0.45 %
Speed Index 1.731 s 1.736 s 1.720 s 1.714 s 1.773 s1.731 s1.735 s21 ms1.19 %
Visual Readiness 4.700 s 4.633 s 4.733 s 4.733 s 4.634 s4.700 s4.687 s45 ms0.96 %
Visual Complete 95 4.200 s 4.167 s 4.200 s 4.200 s 4.200 s4.200 s4.193 s13 ms0.31 %
Visual Complete 99 5.767 s 5.733 s 5.800 s 5.767 s 5.767 s5.767 s5.767 s21 ms0.37 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 76 ms 77 ms 76 ms76 ms76 ms0 ms0.52 %
Page metrics
DOM elements 8931 8931 8932 8932 89318931893100.01 %
Document height 33241 33241 33241 33241 33241332413324100.00 %
Total Requests 58 58 58 58 58585800.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 99900.00 %
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 930.2 KB 932.9 KB 932.9 KB 932.9 KB 932.9 KB932.9 KB932.3 KB1.1 KB0.12 %
HTML Transfer Size 128.6 KB 128.6 KB 128.6 KB 128.6 KB 128.6 KB128.6 KB128.6 KB0 b0.00 %
JavaScript Transfer Size 382.8 KB 382.8 KB 382.8 KB 382.9 KB 382.8 KB382.8 KB382.8 KB33 B0.01 %
CSS Transfer Size 26.6 KB 26.6 KB 26.6 KB 26.6 KB 26.6 KB26.6 KB26.6 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 %
Plain Transfer Size 683 B 683 B 683 B 683 B 683 B683 B683 B0 b0.00 %
SVG Transfer Size 34.3 KB 34.3 KB 34.3 KB 34.3 KB 34.3 KB34.3 KB34.3 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 %
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 58 58 58 58 58585800.00 %
First Party Total Transfer Size 930.2 KB 932.9 KB 932.9 KB 932.9 KB 932.9 KB932.9 KB932.3 KB1.1 KB0.12 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %