| Metric | Polymer | PWA | Winner |
|---|---|---|---|
| Performance | 40 | 35 | Polymer |
| Accessibility | 89 | 90 | PWA |
| Best Practices | 100 | 85 | Polymer |
| SEO | 100 | 94 | Polymer |
| Security | 70 | 66 | Polymer |
| TTFB | 172ms | 239ms | Polymer |
| Composite | 73 | 73 | Tie |
Polymer outperforms PWA in 5 of 7 categories, with a stronger composite score (73 vs 73). PWA leads in accessibility.
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