| Metric | Attentive | core-js | Winner |
|---|---|---|---|
| Performance | 23 | 36 | core-js |
| Accessibility | 84 | 88 | core-js |
| Best Practices | 75 | 84 | core-js |
| SEO | 92 | 91 | Attentive |
| Security | 69 | 65 | Attentive |
| TTFB | 312ms | 374ms | Attentive |
| Composite | 72 | 72 | Tie |
Attentive and core-js are closely matched, each leading in different categories. Attentive has a composite score of 72 while core-js scores 72.
Choose Attentive when your primary concern is server response time and security. Its audit data shows consistent strength in these areas across the sampled sites.
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.
Scores are medians across 12 audited Attentive sites and 1582 audited core-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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