Metrics per run

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

Tested 2025-12-07 12:40:08 using Firefox 144.0.2 (runtime settings).

Side by side

Metric1234567MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 517 ms 518 ms 514 ms 515 ms 515 ms 518 ms 495 ms515 ms513 ms8 ms1.47 %
First Contentful Paint 1.016 s 982 ms 1.033 s 1.016 s 982 ms 1.033 s 948 ms1.016 s1.001 s29 ms2.93 %
Largest Contentful Paint 1.051 s 1.628 s 1.611 s 1.649 s 1.068 s 1.817 s 1.713 s1.628 s1.505 s289 ms19.20 %
Timing metrics
First Paint 1.032 s 1.033 s 1.041 s 1.018 s 1.044 s 1.035 s 1.003 s1.033 s1.029 s13 ms1.29 %
First Contentful Paint 1.016 s 982 ms 1.033 s 1.016 s 982 ms 1.033 s 948 ms1.016 s1.001 s29 ms2.93 %
Largest Contentful Paint 1.051 s 1.628 s 1.611 s 1.649 s 1.068 s 1.817 s 1.713 s1.628 s1.505 s289 ms19.20 %
Load Event End 1.845 s 2.024 s 1.964 s 2.033 s 2.019 s 1.960 s 1.936 s1.964 s1.969 s61 ms3.11 %
Server Response Time 194 ms 194 ms 195 ms 195 ms 195 ms 195 ms 193 ms195 ms194 ms1 ms0.37 %
TTFB 517 ms 518 ms 514 ms 515 ms 515 ms 518 ms 495 ms515 ms513 ms8 ms1.47 %
Page Load Time 1.845 s 2.023 s 1.964 s 2.033 s 2.019 s 1.959 s 1.935 s1.964 s1.968 s61 ms3.11 %
First Visual Change 1.067 s 1.100 s 1.100 s 1.067 s 1.100 s 1.067 s 1.067 s1.067 s1.081 s16 ms1.51 %
Last Visual Change 12.067 s 12.100 s 12.167 s 12.067 s 12.167 s 12.200 s 12.200 s12.167 s12.138 s55 ms0.45 %
Speed Index 2.995 s 3.028 s 3.037 s 3.008 s 3.102 s 3.096 s 3.089 s3.037 s3.051 s41 ms1.34 %
Visual Readiness 11.000 s 11.000 s 11.067 s 11.000 s 11.067 s 11.133 s 11.133 s11.067 s11.057 s55 ms0.50 %
Visual Complete 95 10.600 s 10.633 s 10.867 s 10.633 s 10.733 s 10.933 s 10.934 s10.733 s10.762 s136 ms1.27 %
Visual Complete 99 11.900 s 11.900 s 12.000 s 11.867 s 12.000 s 12.033 s 12.034 s12.000 s11.962 s65 ms0.55 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 77 ms 77 ms 77 ms 77 ms 52 ms 77 ms77 ms73 ms9 ms11.91 %
Page metrics
DOM elements 9253 9253 9253 9253 9253 9253 92539253925300.00 %
Document height 34777 34777 34777 34777 34777 34777 34777347773477700.00 %
Total Requests 58 58 58 58 58 58 58585800.00 %
HTML Requests 1 1 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 9 9 99900.00 %
CSS Requests 2 2 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0 0 0000N/A
Total Transfer Size 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB884.5 KB884.5 KB4 B0.00 %
HTML Transfer Size 133.2 KB 133.2 KB 133.2 KB 133.2 KB 133.2 KB 133.2 KB 133.2 KB133.2 KB133.2 KB0 b0.00 %
JavaScript Transfer Size 405.5 KB 405.5 KB 405.5 KB 405.5 KB 405.5 KB 405.5 KB 405.5 KB405.5 KB405.5 KB2 B0.00 %
CSS Transfer Size 26.6 KB 26.6 KB 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 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 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 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 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 b 0 b 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Font Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Plain Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 58 58 58 58 58 58 58585800.00 %
First Party Total Transfer Size 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB 884.5 KB884.5 KB884.5 KB4 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %