Based on 246 and 241 real audits
| Metric | core-js | Google Analytics | Winner |
|---|---|---|---|
| Performance | 34 | 37 | Google Analytics |
| Accessibility | 87 | 88 | Google Analytics |
| Best Practices | 84 | 85 | Google Analytics |
| SEO | 92 | 92 | Tie |
| Security | 65 | 64 | core-js |
| TTFB | 346ms | 309ms | Google Analytics |
| Composite | 72 | 73 | Google Analytics |
Google Analytics outperforms core-js in 5 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in security.
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