Based on 396 and 9 real audits
| Metric | jsDelivr CDN | Supabase | Winner |
|---|---|---|---|
| Performance | 40 | 63 | Supabase |
| Accessibility | 88 | 92 | Supabase |
| Best Practices | 86 | 95 | Supabase |
| SEO | 92 | 97 | Supabase |
| Security | 67 | 80 | Supabase |
| TTFB | 371ms | 312ms | Supabase |
| Composite | 74 | 83 | Supabase |
Supabase outperforms jsDelivr CDN in 7 of 7 categories, with a stronger composite score (83 vs 74). jsDelivr CDN leads in no categories.
jsDelivr CDN doesn't clearly lead Supabase in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose Supabase when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 396 audited jsDelivr CDN sites and 9 audited Supabase 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 →
Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.
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