| Metric | core-js | DataDome | Winner |
|---|---|---|---|
| Performance | 37 | 31 | core-js |
| Accessibility | 88 | 89 | DataDome |
| Best Practices | 85 | 85 | Tie |
| SEO | 91 | 88 | core-js |
| Security | 68 | 63 | core-js |
| TTFB | 470ms | 126ms | DataDome |
| Composite | 74 | 72 | core-js |
core-js outperforms DataDome in 4 of 7 categories, with a stronger composite score (74 vs 72). DataDome leads in accessibility, TTFB.
Choose core-js when your primary concern is performance and security. Its audit data shows consistent strength in these areas across the sampled sites.
Choose DataDome 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 1927 audited core-js sites and 16 audited DataDome 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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