| Metric | core-js | Fourthwall | Winner |
|---|---|---|---|
| Performance | 37 | 37 | Tie |
| Accessibility | 88 | 91 | Fourthwall |
| Best Practices | 85 | 89 | Fourthwall |
| SEO | 91 | 96 | Fourthwall |
| Security | 66 | 65 | core-js |
| TTFB | 424ms | 188ms | Fourthwall |
| Composite | 73 | 73 | Tie |
Fourthwall outperforms core-js in 4 of 7 categories, with a stronger composite score (73 vs 73). core-js leads in security.
Choose core-js when your primary concern is security. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Fourthwall when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1747 audited core-js sites and 17 audited Fourthwall 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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