| Metric | Chart.js | core-js | Winner |
|---|---|---|---|
| Performance | 47 | 37 | Chart.js |
| Accessibility | 89 | 88 | Chart.js |
| Best Practices | 91 | 85 | Chart.js |
| SEO | 91 | 91 | Tie |
| Security | 70 | 68 | Chart.js |
| TTFB | 938ms | 476ms | core-js |
| Composite | 76 | 74 | Chart.js |
Chart.js outperforms core-js in 5 of 7 categories, with a stronger composite score (76 vs 74). core-js leads in TTFB.
Choose Chart.js when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Choose core-js when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 39 audited Chart.js sites and 1930 audited core-js 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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