Based on 1637 and 369 real audits
| Metric | core-js | Proofpoint | Winner |
|---|---|---|---|
| Performance | 36 | 35 | core-js |
| Accessibility | 88 | 89 | Proofpoint |
| Best Practices | 84 | 85 | Proofpoint |
| SEO | 91 | 89 | core-js |
| Security | 65 | 67 | Proofpoint |
| TTFB | 385ms | 309ms | Proofpoint |
| Composite | 73 | 72 | core-js |
Proofpoint outperforms core-js in 4 of 7 categories, with a stronger composite score (72 vs 73). core-js leads in performance, SEO, composite score.
Choose core-js when your primary concern is SEO and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Proofpoint when your primary concern is server response time and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1637 audited core-js sites and 369 audited Proofpoint 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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