https://en.wikipedia.org/wiki/ChatGPT
Tested 2026-07-28 00:37:14 using Chrome 150.0.7871.186 (runtime settings)
| Metric | Run 1 | Run 2 | Run 3 | Run 4 | Run 5 | Median | Mean | Stddev | RSD |
|---|---|---|---|---|---|---|---|---|---|
| Google Web Vitals | |||||||||
| Time to First Byte | 403 ms | 404 ms | 404 ms | 403 ms | 403 ms | 403 ms | 403 ms | 0 ms | 0.12 % |
| Largest Contentful Paint | 1.188 s | 1.208 s | 1.180 s | 1.212 s | 1.196 s | 1.196 s | 1.197 s | 12 ms | 1.00 % |
| Total Blocking Time | 14 ms | 7 ms | 6 ms | 7 ms | 21 ms | 7 ms | 11 ms | 6 ms | 52.38 % |
| Cumulative Layout Shift | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0 | 0.00 % |
| Timing metrics | |||||||||
| First Paint | 1.188 s | 1.208 s | 1.180 s | 1.212 s | 1.196 s | 1.196 s | 1.197 s | 12 ms | 1.00 % |
| Largest Contentful Paint | 1.188 s | 1.208 s | 1.180 s | 1.212 s | 1.196 s | 1.196 s | 1.197 s | 12 ms | 1.00 % |
| Load Event End | 1.725 s | 1.828 s | 1.634 s | 1.833 s | 1.731 s | 1.731 s | 1.750 s | 74 ms | 4.23 % |
| Server Response Time | 457 ms | 458 ms | 532 ms | 458 ms | 458 ms | 458 ms | 473 ms | 30 ms | 6.28 % |
| TTFB | 403 ms | 404 ms | 404 ms | 403 ms | 403 ms | 403 ms | 403 ms | 0 ms | 0.12 % |
| Page Load Time | 1.725 s | 1.827 s | 1.634 s | 1.832 s | 1.730 s | 1.730 s | 1.750 s | 74 ms | 4.21 % |
| First Visual Change | 1.200 s | 1.200 s | 1.166 s | 1.233 s | 1.200 s | 1.200 s | 1.200 s | 21 ms | 1.77 % |
| Last Visual Change | 1.666 s | 1.700 s | 2.000 s | 1.700 s | 1.666 s | 1.700 s | 1.746 s | 128 ms | 7.31 % |
| Speed Index | 1.208 s | 1.208 s | 1.182 s | 1.241 s | 1.208 s | 1.208 s | 1.209 s | 19 ms | 1.55 % |
| Visual Readiness | 466 ms | 500 ms | 834 ms | 467 ms | 466 ms | 467 ms | 547 ms | 144 ms | 26.40 % |
| Visual Complete 95 | 1.200 s | 1.200 s | 1.166 s | 1.233 s | 1.200 s | 1.200 s | 1.200 s | 21 ms | 1.77 % |
| Visual Complete 99 | 1.600 s | 1.566 s | 1.933 s | 1.600 s | 1.600 s | 1.600 s | 1.660 s | 137 ms | 8.27 % |
| CPU metrics | |||||||||
| Total Blocking Time | 14 ms | 7 ms | 6 ms | 7 ms | 21 ms | 7 ms | 11 ms | 6 ms | 52.38 % |
| Max Potential FID | 60 ms | 57 ms | 55 ms | 57 ms | 70 ms | 57 ms | 60 ms | 5 ms | 8.94 % |
| Number of Long Tasks | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 0 | 18.84 % |
| Total Duration of Long Tasks | 364 ms | 332 ms | 345 ms | 329 ms | 378 ms | 345 ms | 350 ms | 19 ms | 5.38 % |
| Browser metrics | |||||||||
| CPU benchmark score | 42 ms | 48 ms | 44 ms | 44 ms | 46 ms | 44 ms | 45 ms | 2 ms | 4.55 % |
| Page metrics | |||||||||
| Cumulative Layout Shift | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0 | 0.00 % |
| DOM elements | 9036 | 9036 | 9036 | 9036 | 9036 | 9036 | 9036 | 0 | 0.00 % |
| Document height | 27205 | 27205 | 27205 | 27205 | 27205 | 27205 | 27205 | 0 | 0.00 % |
| Total Requests | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 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 | 841.2 KB | 841.3 KB | 840.6 KB | 842.9 KB | 841.9 KB | 841.3 KB | 841.6 KB | 812 B | 0.09 % |
| HTML Transfer Size | 181.2 KB | 181.2 KB | 181.2 KB | 181.2 KB | 181.2 KB | 181.2 KB | 181.2 KB | 23 B | 0.01 % |
| JavaScript Transfer Size | 309.3 KB | 309.3 KB | 309.3 KB | 309.6 KB | 309.4 KB | 309.3 KB | 309.4 KB | 136 B | 0.04 % |
| CSS Transfer Size | 29.1 KB | 29.1 KB | 29.1 KB | 29.2 KB | 29.2 KB | 29.1 KB | 29.2 KB | 45 B | 0.15 % |
| 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 | 1.9 KB | 1.8 KB | 1.8 KB | 1.8 KB | 23 B | 1.21 % |
| Plain Transfer Size | 905 B | 918 B | 905 B | 970 B | 936 B | 918 B | 927 B | 24 B | 2.63 % |
| SVG Transfer Size | 80.7 KB | 80.9 KB | 80.4 KB | 81.9 KB | 81.2 KB | 80.9 KB | 81.0 KB | 530 B | 0.64 % |
| Total Content Size | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 0 b | 0.00 % |
| HTML 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 % |
| JavaScript 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 % |
| CSS Content Size | 217.1 KB | 217.1 KB | 217.1 KB | 217.1 KB | 217.1 KB | 217.1 KB | 217.1 KB | 0 b | 0.00 % |
| Image Content Size | 198.0 KB | 198.0 KB | 198.0 KB | 198.0 KB | 198.0 KB | 198.0 KB | 198.0 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 | 146.3 KB | 146.3 KB | 146.3 KB | 146.3 KB | 146.3 KB | 146.3 KB | 146.3 KB | 0 b | 0.00 % |
| Third Party metrics | |||||||||
| First Party metrics | |||||||||
| First Party Requests | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 0 | 0.00 % |
| First Party Total Transfer Size | 841.2 KB | 841.3 KB | 840.6 KB | 842.9 KB | 841.9 KB | 841.3 KB | 841.6 KB | 812 B | 0.09 % |
| First Party Total Content Size | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 2.9 MB | 0 b | 0.00 % |
