| Metric | core-js | SpeedCurve | Winner |
|---|---|---|---|
| Performance | 36 | 36 | Tie |
| Accessibility | 88 | 91 | SpeedCurve |
| Best Practices | 84 | 85 | SpeedCurve |
| SEO | 91 | 92 | SpeedCurve |
| Security | 65 | 66 | SpeedCurve |
| TTFB | 374ms | 312ms | SpeedCurve |
| Composite | 72 | 73 | SpeedCurve |
SpeedCurve outperforms core-js in 6 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in no categories.
core-js doesn't clearly lead SpeedCurve in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose SpeedCurve 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 1582 audited core-js sites and 23 audited SpeedCurve 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 →
Send Feedback