| Metric | Apple | Day.js | Winner |
|---|---|---|---|
| Performance | 39 | 41 | Day.js |
| Accessibility | 90 | 77 | Apple |
| Best Practices | 86 | 83 | Apple |
| SEO | 89 | 94 | Day.js |
| Security | 67 | 65 | Apple |
| TTFB | 318ms | 493ms | Apple |
| Composite | 73 | 74 | Day.js |
Apple outperforms Day.js in 4 of 7 categories, with a stronger composite score (73 vs 74). Day.js leads in performance, SEO, composite score.
Choose Apple when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Day.js when your primary concern is SEO and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1267 audited Apple sites and 11 audited Day.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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