https://en.wikipedia.org/wiki/ChatGPT
Tested 2026-09-20 12:21:34 using Firefox 154.0.1 (runtime settings)
| Metric | Run 1 | Run 2 | Run 3 | Run 4 | Run 5 | Median | Mean | Stddev | RSD |
|---|---|---|---|---|---|---|---|---|---|
| Google Web Vitals | |||||||||
| Time to First Byte | 421 ms | 424 ms | 420 ms | 422 ms | 421 ms | 421 ms | 422 ms | 1 ms | 0.32 % |
| Largest Contentful Paint | 2.119 s | 2.186 s | 2.118 s | 2.067 s | 2.119 s | 2.119 s | 2.122 s | 38 ms | 1.78 % |
| Timing metrics | |||||||||
| First Paint | 1.117 s | 1.091 s | 1.080 s | 1.073 s | 1.097 s | 1.091 s | 1.092 s | 15 ms | 1.39 % |
| Largest Contentful Paint | 2.119 s | 2.186 s | 2.118 s | 2.067 s | 2.119 s | 2.119 s | 2.122 s | 38 ms | 1.78 % |
| Load Event End | 1.543 s | 1.540 s | 1.505 s | 1.502 s | 1.515 s | 1.515 s | 1.521 s | 17 ms | 1.14 % |
| Server Response Time | 112 ms | 113 ms | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 0 ms | 0.36 % |
| TTFB | 421 ms | 424 ms | 420 ms | 422 ms | 421 ms | 421 ms | 422 ms | 1 ms | 0.32 % |
| Page Load Time | 1.543 s | 1.540 s | 1.505 s | 1.502 s | 1.515 s | 1.515 s | 1.521 s | 17 ms | 1.14 % |
| First Visual Change | 1.167 s | 1.133 s | 1.100 s | 1.100 s | 1.133 s | 1.133 s | 1.127 s | 25 ms | 2.22 % |
| Last Visual Change | 2.133 s | 2.233 s | 2.133 s | 2.067 s | 2.133 s | 2.133 s | 2.140 s | 53 ms | 2.48 % |
| Speed Index | 1.266 s | 1.248 s | 1.207 s | 1.200 s | 1.237 s | 1.237 s | 1.232 s | 25 ms | 2.02 % |
| Visual Readiness | 966 ms | 1.100 s | 1.033 s | 967 ms | 1.000 s | 1.000 s | 1.013 s | 50 ms | 4.93 % |
| Visual Complete 95 | 2.100 s | 2.200 s | 2.100 s | 2.033 s | 2.100 s | 2.100 s | 2.107 s | 53 ms | 2.54 % |
| Visual Complete 99 | 2.133 s | 2.233 s | 2.133 s | 2.067 s | 2.133 s | 2.133 s | 2.140 s | 53 ms | 2.48 % |
| CPU metrics | |||||||||
| Browser metrics | |||||||||
| CPU benchmark score | 77 ms | 80 ms | 81 ms | 53 ms | 52 ms | 77 ms | 69 ms | 13 ms | 19.26 % |
| Page metrics | |||||||||
| DOM elements | 10219 | 10220 | 10219 | 10219 | 10219 | 10219 | 10219 | 0 | 0.00 % |
| Document height | 29357 | 29357 | 29357 | 29357 | 29357 | 29357 | 29357 | 0 | 0.00 % |
| Total Requests | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 0 | 0.00 % |
| HTML Requests | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0.00 % |
| JavaScript Requests | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 0 | 0.00 % |
| CSS Requests | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0.00 % |
| Font Requests | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 % |
| HTTP Errors | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | N/A |
| Total Transfer Size | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 2 B | 0.00 % |
| HTML Transfer Size | 192.1 KB | 192.1 KB | 192.1 KB | 192.1 KB | 192.1 KB | 192.1 KB | 192.1 KB | 1 B | 0.00 % |
| JavaScript Transfer Size | 291.0 KB | 291.0 KB | 291.0 KB | 291.0 KB | 291.0 KB | 291.0 KB | 291.0 KB | 2 B | 0.00 % |
| CSS Transfer Size | 29.4 KB | 29.4 KB | 29.4 KB | 29.4 KB | 29.4 KB | 29.4 KB | 29.4 KB | 0 b | 0.00 % |
| Font Transfer Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Favicon Transfer Size | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 0 b | 0.02 % |
| Plain Transfer Size | 997 B | 997 B | 997 B | 997 B | 996 B | 997 B | 997 B | 0 b | 0.04 % |
| SVG Transfer Size | 91.8 KB | 91.8 KB | 91.8 KB | 91.8 KB | 91.8 KB | 91.8 KB | 91.8 KB | 2 B | 0.00 % |
| Total Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| HTML Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| JavaScript Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| CSS Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Image Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Font Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Favicon Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Plain Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| SVG Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Third Party metrics | |||||||||
| First Party metrics | |||||||||
| First Party Requests | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 0 | 0.00 % |
| First Party Total Transfer Size | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 665.8 KB | 2 B | 0.00 % |
| First Party Total Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
