| Metric | core-js | Rakuten | Winner |
|---|---|---|---|
| Performance | 33 | 14 | core-js |
| Accessibility | 88 | 91 | Rakuten |
| Best Practices | 84 | 79 | core-js |
| SEO | 92 | 87 | core-js |
| Security | 66 | 70 | Rakuten |
| TTFB | 364ms | 164ms | Rakuten |
| Composite | 73 | 72 | core-js |
core-js outperforms Rakuten in 4 of 7 categories, with a stronger composite score (73 vs 72). Rakuten leads in accessibility, security, TTFB.
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