https://en.wikipedia.org/wiki/ChatGPT
Tested 2026-09-24 03:02:27 using Chrome 152.0.7977.64 (runtime settings)
| Metric | Run 1 | Run 2 | Run 3 | Run 4 | Run 5 | Median | Mean | Stddev | RSD |
|---|---|---|---|---|---|---|---|---|---|
| Google Web Vitals | |||||||||
| Time to First Byte | 406 ms | 404 ms | 403 ms | 405 ms | 404 ms | 404 ms | 404 ms | 1 ms | 0.25 % |
| Largest Contentful Paint | 1.256 s | 1.224 s | 1.252 s | 1.204 s | 1.224 s | 1.224 s | 1.232 s | 19 ms | 1.58 % |
| Total Blocking Time | 17 ms | 13 ms | 9 ms | 5 ms | 10 ms | 10 ms | 11 ms | 4 ms | 37.22 % |
| Cumulative Layout Shift | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0 | 0.00 % |
| Timing metrics | |||||||||
| First Paint | 1.256 s | 1.224 s | 1.252 s | 1.204 s | 1.224 s | 1.224 s | 1.232 s | 19 ms | 1.58 % |
| Largest Contentful Paint | 1.256 s | 1.224 s | 1.252 s | 1.204 s | 1.224 s | 1.224 s | 1.232 s | 19 ms | 1.58 % |
| Load Event End | 1.886 s | 1.909 s | 1.890 s | 1.529 s | 1.878 s | 1.886 s | 1.818 s | 145 ms | 7.98 % |
| Server Response Time | 525 ms | 526 ms | 525 ms | 517 ms | 525 ms | 525 ms | 524 ms | 3 ms | 0.63 % |
| TTFB | 406 ms | 404 ms | 403 ms | 405 ms | 404 ms | 404 ms | 404 ms | 1 ms | 0.25 % |
| Page Load Time | 1.886 s | 1.909 s | 1.890 s | 1.529 s | 1.878 s | 1.886 s | 1.818 s | 145 ms | 7.98 % |
| First Visual Change | 1.233 s | 1.200 s | 1.233 s | 1.200 s | 1.233 s | 1.233 s | 1.220 s | 16 ms | 1.33 % |
| Last Visual Change | 1.933 s | 1.900 s | 1.933 s | 2.200 s | 1.933 s | 1.933 s | 1.980 s | 111 ms | 5.60 % |
| Speed Index | 1.313 s | 1.279 s | 1.313 s | 1.319 s | 1.313 s | 1.313 s | 1.307 s | 14 ms | 1.10 % |
| Visual Readiness | 700 ms | 700 ms | 700 ms | 1.000 s | 700 ms | 700 ms | 760 ms | 120 ms | 15.79 % |
| Visual Complete 95 | 1.933 s | 1.900 s | 1.933 s | 2.200 s | 1.933 s | 1.933 s | 1.980 s | 111 ms | 5.60 % |
| Visual Complete 99 | 1.933 s | 1.900 s | 1.933 s | 2.200 s | 1.933 s | 1.933 s | 1.980 s | 111 ms | 5.60 % |
| CPU metrics | |||||||||
| Total Blocking Time | 17 ms | 13 ms | 9 ms | 5 ms | 10 ms | 10 ms | 11 ms | 4 ms | 37.22 % |
| Max Potential FID | 59 ms | 60 ms | 56 ms | 54 ms | 56 ms | 56 ms | 57 ms | 2 ms | 3.84 % |
| Number of Long Tasks | 4 | 5 | 3 | 4 | 3 | 4 | 4 | 1 | 19.69 % |
| Total Duration of Long Tasks | 476 ms | 508 ms | 410 ms | 414 ms | 421 ms | 421 ms | 446 ms | 39 ms | 8.80 % |
| Browser metrics | |||||||||
| CPU benchmark score | 42 ms | 45 ms | 33 ms | 33 ms | 34 ms | 34 ms | 37 ms | 5 ms | 13.59 % |
| Page metrics | |||||||||
| Cumulative Layout Shift | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0 | 0.00 % |
| DOM elements | 10214 | 10213 | 10214 | 10213 | 10214 | 10214 | 10214 | 0 | 0.00 % |
| Document height | 26720 | 26720 | 26720 | 26720 | 26720 | 26720 | 26720 | 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 | 675.9 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 4 B | 0.00 % |
| HTML Transfer Size | 191.7 KB | 191.7 KB | 191.7 KB | 191.7 KB | 191.7 KB | 191.7 KB | 191.7 KB | 0 b | 0.00 % |
| JavaScript Transfer Size | 290.5 KB | 290.5 KB | 290.5 KB | 290.5 KB | 290.5 KB | 290.5 KB | 290.5 KB | 2 B | 0.00 % |
| CSS Transfer Size | 29.0 KB | 29.0 KB | 29.0 KB | 29.0 KB | 29.0 KB | 29.0 KB | 29.0 KB | 3 B | 0.01 % |
| Font Transfer Size | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0 b | 0.00 % |
| Favicon Transfer Size | 1.8 KB | 1.8 KB | 1.8 KB | 1.8 KB | 1.8 KB | 1.8 KB | 1.8 KB | 0 b | 0.00 % |
| Plain Transfer Size | 905 B | 904 B | 904 B | 904 B | 905 B | 904 B | 904 B | 0 b | 0.05 % |
| SVG Transfer Size | 86.9 KB | 86.9 KB | 86.9 KB | 86.9 KB | 86.9 KB | 86.9 KB | 86.9 KB | 5 B | 0.01 % |
| Total Content Size | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 0 b | 0.00 % |
| HTML Content Size | 1.2 MB | 1.2 MB | 1.2 MB | 1.2 MB | 1.2 MB | 1.2 MB | 1.2 MB | 0 b | 0.00 % |
| JavaScript Content Size | 1.1 MB | 1.1 MB | 1.1 MB | 1.1 MB | 1.1 MB | 1.1 MB | 1.1 MB | 0 b | 0.00 % |
| CSS Content Size | 213.5 KB | 213.5 KB | 213.5 KB | 213.5 KB | 213.5 KB | 213.5 KB | 213.5 KB | 0 b | 0.00 % |
| Image Content Size | 61.6 KB | 61.6 KB | 61.6 KB | 61.6 KB | 61.6 KB | 61.6 KB | 61.6 KB | 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 | 2.7 KB | 2.7 KB | 2.7 KB | 2.7 KB | 2.7 KB | 2.7 KB | 2.7 KB | 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 | 161.0 KB | 161.0 KB | 161.0 KB | 161.0 KB | 161.0 KB | 161.0 KB | 161.0 KB | 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 | 675.9 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 675.8 KB | 4 B | 0.00 % |
| First Party Total Content Size | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 2.7 MB | 0 b | 0.00 % |
