Based on 1582 and 19 real audits
| Metric | core-js | Fundraise Up | Winner |
|---|---|---|---|
| Performance | 36 | 32 | core-js |
| Accessibility | 88 | 92 | Fundraise Up |
| Best Practices | 84 | 84 | Tie |
| SEO | 91 | 91 | Tie |
| Security | 65 | 65 | Tie |
| TTFB | 374ms | 274ms | Fundraise Up |
| Composite | 72 | 72 | Tie |
Fundraise Up outperforms core-js in 2 of 7 categories, with a stronger composite score (72 vs 72). core-js leads in performance.
Choose core-js when your primary concern is performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Fundraise Up 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 1582 audited core-js sites and 19 audited Fundraise Up 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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