| Metric | core-js | OpenResty | Winner |
|---|---|---|---|
| Performance | 36 | 44 | OpenResty |
| Accessibility | 88 | 82 | core-js |
| Best Practices | 84 | 85 | OpenResty |
| SEO | 91 | 88 | core-js |
| Security | 65 | 64 | core-js |
| TTFB | 374ms | 536ms | core-js |
| Composite | 72 | 71 | core-js |
core-js outperforms OpenResty in 5 of 7 categories, with a stronger composite score (72 vs 71). OpenResty leads in performance, best practices.
Choose core-js when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose OpenResty when your primary concern is performance and best practices. 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 OpenResty 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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