https://en.wikipedia.org/wiki/ChatGPT
Tested 2026-07-28 01:10:00 using Firefox 153.0 (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 | 423 ms | 422 ms | 422 ms | 422 ms | 1 ms | 0.34 % |
| Largest Contentful Paint | 1.680 s | 2.027 s | 1.887 s | 1.766 s | 1.222 s | 1.766 s | 1.716 s | 273 ms | 15.93 % |
| Timing metrics | |||||||||
| First Paint | 1.187 s | 1.164 s | 1.170 s | 1.204 s | 1.157 s | 1.170 s | 1.176 s | 17 ms | 1.45 % |
| Largest Contentful Paint | 1.680 s | 2.027 s | 1.887 s | 1.766 s | 1.222 s | 1.766 s | 1.716 s | 273 ms | 15.93 % |
| Load Event End | 2.269 s | 2.104 s | 2.211 s | 2.270 s | 2.192 s | 2.211 s | 2.209 s | 61 ms | 2.76 % |
| Server Response Time | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 0 ms | 0.00 % |
| TTFB | 421 ms | 424 ms | 420 ms | 423 ms | 422 ms | 422 ms | 422 ms | 1 ms | 0.34 % |
| Page Load Time | 2.268 s | 2.104 s | 2.211 s | 2.270 s | 2.191 s | 2.211 s | 2.209 s | 61 ms | 2.76 % |
| First Visual Change | 1.233 s | 1.200 s | 1.233 s | 1.233 s | 1.200 s | 1.233 s | 1.220 s | 16 ms | 1.33 % |
| Last Visual Change | 2.133 s | 2.033 s | 2.067 s | 2.100 s | 2.067 s | 2.067 s | 2.080 s | 34 ms | 1.63 % |
| Speed Index | 1.255 s | 1.223 s | 1.256 s | 1.255 s | 1.217 s | 1.255 s | 1.241 s | 17 ms | 1.40 % |
| Visual Readiness | 900 ms | 833 ms | 834 ms | 867 ms | 867 ms | 867 ms | 860 ms | 25 ms | 2.90 % |
| Visual Complete 95 | 1.233 s | 1.200 s | 1.233 s | 1.233 s | 1.200 s | 1.233 s | 1.220 s | 16 ms | 1.33 % |
| Visual Complete 99 | 2.100 s | 2.033 s | 2.033 s | 2.067 s | 2.033 s | 2.033 s | 2.053 s | 27 ms | 1.31 % |
| CPU metrics | |||||||||
| Browser metrics | |||||||||
| CPU benchmark score | 52 ms | 58 ms | 52 ms | 51 ms | 51 ms | 52 ms | 53 ms | 3 ms | 5.00 % |
| Page metrics | |||||||||
| DOM elements | 9036 | 9035 | 9036 | 9036 | 9036 | 9036 | 9036 | 0 | 0.00 % |
| Document height | 29751 | 29751 | 29751 | 29751 | 29751 | 29751 | 29751 | 0 | 0.00 % |
| Total Requests | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 0 | 0.00 % |
| HTML Requests | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0.00 % |
| JavaScript Requests | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 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 | 855.3 KB | 855.3 KB | 857.3 KB | 855.5 KB | 855.6 KB | 855.5 KB | 855.8 KB | 773 B | 0.09 % |
| HTML Transfer Size | 181.3 KB | 181.3 KB | 181.4 KB | 181.3 KB | 181.3 KB | 181.3 KB | 181.3 KB | 23 B | 0.01 % |
| JavaScript Transfer Size | 310.3 KB | 310.3 KB | 310.7 KB | 310.3 KB | 310.4 KB | 310.3 KB | 310.4 KB | 140 B | 0.04 % |
| CSS Transfer Size | 29.5 KB | 29.5 KB | 29.6 KB | 29.5 KB | 29.5 KB | 29.5 KB | 29.5 KB | 47 B | 0.16 % |
| 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 | 2.1 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 23 B | 1.13 % |
| Plain Transfer Size | 997 B | 997 B | 1.0 KB | 1010 B | 1012 B | 1010 B | 1016 B | 25 B | 2.44 % |
| SVG Transfer Size | 85.4 KB | 85.4 KB | 86.6 KB | 85.6 KB | 85.6 KB | 85.6 KB | 85.7 KB | 468 B | 0.53 % |
| 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 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 0 | 0.00 % |
| First Party Total Transfer Size | 855.3 KB | 855.3 KB | 857.3 KB | 855.5 KB | 855.6 KB | 855.5 KB | 855.8 KB | 773 B | 0.09 % |
| First Party Total Content Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
