| Metric | HTTP/3 | Polymer | Winner |
|---|---|---|---|
| Performance | 41 | 40 | HTTP/3 |
| Accessibility | 90 | 89 | HTTP/3 |
| Best Practices | 88 | 100 | Polymer |
| SEO | 90 | 100 | Polymer |
| Security | 66 | 70 | Polymer |
| TTFB | 327ms | 172ms | Polymer |
| Composite | 74 | 73 | HTTP/3 |
Polymer outperforms HTTP/3 in 4 of 7 categories, with a stronger composite score (73 vs 74). HTTP/3 leads in performance, accessibility, composite score.
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