Based on 1637 and 109 real audits
| Metric | core-js | Google Sign-in | Winner |
|---|---|---|---|
| Performance | 36 | 33 | core-js |
| Accessibility | 88 | 89 | Google Sign-in |
| Best Practices | 84 | 83 | core-js |
| SEO | 91 | 91 | Tie |
| Security | 65 | 64 | core-js |
| TTFB | 385ms | 283ms | Google Sign-in |
| Composite | 73 | 72 | core-js |
core-js outperforms Google Sign-in in 4 of 7 categories, with a stronger composite score (73 vs 72). Google Sign-in leads in accessibility, TTFB.
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 1637 audited core-js sites and 109 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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