| Metric | core-js | Matter.js | Winner |
|---|---|---|---|
| Performance | 36 | 36 | Tie |
| Accessibility | 88 | 92 | Matter.js |
| Best Practices | 84 | 84 | Tie |
| SEO | 91 | 91 | Tie |
| Security | 66 | 70 | Matter.js |
| TTFB | 396ms | 694ms | core-js |
| Composite | 73 | 75 | Matter.js |
Matter.js outperforms core-js in 3 of 7 categories, with a stronger composite score (75 vs 73). core-js leads in TTFB.
Choose core-js when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Matter.js when your primary concern is accessibility and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1687 audited core-js sites and 15 audited Matter.js 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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