| Metric | core-js | crypto-js | Winner |
|---|---|---|---|
| Performance | 36 | 33 | core-js |
| Accessibility | 88 | 82 | core-js |
| Best Practices | 84 | 77 | core-js |
| SEO | 91 | 87 | core-js |
| Security | 65 | 65 | Tie |
| TTFB | 374ms | 325ms | crypto-js |
| Composite | 72 | 71 | core-js |
core-js outperforms crypto-js in 5 of 7 categories, with a stronger composite score (72 vs 71). crypto-js leads in TTFB.
Choose core-js when your primary concern is best practices and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose crypto-js when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1582 audited core-js sites and 42 audited crypto-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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