Based on 1570 and 1550 real audits
| Metric | core-js | Priority Hints | Winner |
|---|---|---|---|
| Performance | 36 | 41 | Priority Hints |
| Accessibility | 88 | 90 | Priority Hints |
| Best Practices | 84 | 87 | Priority Hints |
| SEO | 91 | 92 | Priority Hints |
| Security | 65 | 66 | Priority Hints |
| TTFB | 371ms | 311ms | Priority Hints |
| Composite | 72 | 74 | Priority Hints |
Priority Hints outperforms core-js in 7 of 7 categories, with a stronger composite score (74 vs 72). core-js leads in no categories.
core-js doesn't clearly lead Priority Hints in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose Priority Hints when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1570 audited core-js sites and 1550 audited Priority Hints sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →
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