| Metric | HTTP/3 | Userback | Winner |
|---|---|---|---|
| Performance | 44 | 62 | Userback |
| Accessibility | 89 | 96 | Userback |
| Best Practices | 87 | 73 | HTTP/3 |
| SEO | 91 | 92 | Userback |
| Security | 67 | 75 | Userback |
| TTFB | 248ms | 64ms | Userback |
| Composite | 74 | 77 | Userback |
Userback outperforms HTTP/3 in 6 of 7 categories, with a stronger composite score (77 vs 74). HTTP/3 leads in best practices.
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