https://en.wikipedia.org/wiki/ChatGPT
Tested 2026-07-27 21:33:53 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 | 425 ms | 422 ms | 426 ms | 425 ms | 420 ms | 425 ms | 424 ms | 2 ms | 0.53 % |
| Largest Contentful Paint | 1.993 s | 1.170 s | 1.889 s | 1.153 s | 1.595 s | 1.595 s | 1.560 s | 351 ms | 22.48 % |
| Timing metrics | |||||||||
| First Paint | 1.126 s | 1.074 s | 1.149 s | 1.107 s | 1.108 s | 1.108 s | 1.113 s | 25 ms | 2.22 % |
| Largest Contentful Paint | 1.993 s | 1.170 s | 1.889 s | 1.153 s | 1.595 s | 1.595 s | 1.560 s | 351 ms | 22.48 % |
| Load Event End | 2.188 s | 2.196 s | 2.212 s | 2.210 s | 2.119 s | 2.196 s | 2.185 s | 34 ms | 1.56 % |
| Server Response Time | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 112 ms | 0 ms | 0.00 % |
| TTFB | 425 ms | 422 ms | 426 ms | 425 ms | 420 ms | 425 ms | 424 ms | 2 ms | 0.53 % |
| Page Load Time | 2.187 s | 2.195 s | 2.212 s | 2.209 s | 2.119 s | 2.195 s | 2.184 s | 34 ms | 1.55 % |
| First Visual Change | 1.167 s | 1.133 s | 1.200 s | 1.133 s | 1.133 s | 1.133 s | 1.153 s | 27 ms | 2.33 % |
| Last Visual Change | 2.034 s | 2.067 s | 2.067 s | 2.067 s | 2.133 s | 2.067 s | 2.074 s | 32 ms | 1.56 % |
| Speed Index | 1.192 s | 1.152 s | 1.224 s | 1.152 s | 1.157 s | 1.157 s | 1.175 s | 29 ms | 2.43 % |
| Visual Readiness | 867 ms | 934 ms | 867 ms | 934 ms | 1.000 s | 934 ms | 920 ms | 50 ms | 5.41 % |
| Visual Complete 95 | 1.167 s | 1.133 s | 1.200 s | 1.133 s | 1.133 s | 1.133 s | 1.153 s | 27 ms | 2.33 % |
| Visual Complete 99 | 2.000 s | 2.067 s | 2.033 s | 2.067 s | 2.100 s | 2.067 s | 2.053 s | 34 ms | 1.66 % |
| CPU metrics | |||||||||
| Browser metrics | |||||||||
| CPU benchmark score | 52 ms | 52 ms | 51 ms | 52 ms | 52 ms | 52 ms | 52 ms | 0 ms | 0.77 % |
| Page metrics | |||||||||
| DOM elements | 8952 | 8951 | 8952 | 8951 | 8952 | 8952 | 8952 | 0 | 0.01 % |
| Document height | 29390 | 29390 | 29390 | 29390 | 29390 | 29390 | 29390 | 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 | 853.8 KB | 855.8 KB | 853.8 KB | 854.7 KB | 853.8 KB | 853.8 KB | 854.4 KB | 814 B | 0.09 % |
| HTML Transfer Size | 179.8 KB | 179.8 KB | 179.8 KB | 179.8 KB | 179.8 KB | 179.8 KB | 179.8 KB | 25 B | 0.01 % |
| JavaScript Transfer Size | 310.4 KB | 310.7 KB | 310.4 KB | 310.5 KB | 310.4 KB | 310.4 KB | 310.5 KB | 147 B | 0.05 % |
| CSS Transfer Size | 29.5 KB | 29.6 KB | 29.5 KB | 29.6 KB | 29.5 KB | 29.5 KB | 29.5 KB | 49 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 | 2.1 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 2.0 KB | 24 B | 1.17 % |
| Plain Transfer Size | 997 B | 1.0 KB | 997 B | 1.0 KB | 993 B | 997 B | 1016 B | 27 B | 2.70 % |
| SVG Transfer Size | 85.4 KB | 86.6 KB | 85.4 KB | 86.0 KB | 85.4 KB | 85.4 KB | 85.8 KB | 492 B | 0.56 % |
| 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 | 853.8 KB | 855.8 KB | 853.8 KB | 854.7 KB | 853.8 KB | 853.8 KB | 854.4 KB | 814 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 % |
