Based on 1841 and 4 real audits
| Metric | core-js | Movable Ink | Winner |
|---|---|---|---|
| Performance | 37 | 20 | core-js |
| Accessibility | 88 | 94 | Movable Ink |
| Best Practices | 85 | 83 | core-js |
| SEO | 91 | 92 | Movable Ink |
| Security | 67 | 67 | Tie |
| TTFB | 439ms | 249ms | Movable Ink |
| Composite | 74 | 72 | core-js |
core-js and Movable Ink are closely matched, each leading in different categories. core-js has a composite score of 74 while Movable Ink scores 72.
Choose core-js when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Movable Ink when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1841 audited core-js sites and 4 audited Movable Ink 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 →
Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.
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