Based on 192 and 2421 real audits
| Metric | jsDelivr | Microsoft | Winner |
|---|---|---|---|
| Performance | 39 | 39 | Tie |
| Accessibility | 88 | 89 | Microsoft |
| Best Practices | 87 | 86 | jsDelivr |
| SEO | 91 | 89 | jsDelivr |
| Security | 65 | 66 | Microsoft |
| TTFB | 428ms | 329ms | Microsoft |
| Composite | 73 | 72 | jsDelivr |
jsDelivr and Microsoft are closely matched, each leading in different categories. jsDelivr has a composite score of 73 while Microsoft scores 72.
Choose jsDelivr when your primary concern is SEO and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Microsoft 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 192 audited jsDelivr sites and 2421 audited Microsoft 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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