Based on 1747 and 121 real audits
| Metric | core-js | Google Sign-in | Winner |
|---|---|---|---|
| Performance | 37 | 36 | core-js |
| Accessibility | 88 | 89 | Google Sign-in |
| Best Practices | 85 | 84 | core-js |
| SEO | 91 | 92 | Google Sign-in |
| Security | 66 | 66 | Tie |
| TTFB | 424ms | 322ms | Google Sign-in |
| Composite | 73 | 73 | Tie |
Google Sign-in outperforms core-js in 3 of 7 categories, with a stronger composite score (73 vs 73). core-js leads in performance, best practices.
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 Google Sign-in 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 1747 audited core-js sites and 121 audited Google Sign-in 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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