| Metric | Firebase | Microsoft | Winner |
|---|---|---|---|
| Performance | 47 | 39 | Firebase |
| Accessibility | 85 | 89 | Microsoft |
| Best Practices | 88 | 86 | Firebase |
| SEO | 91 | 89 | Firebase |
| Security | 65 | 66 | Microsoft |
| TTFB | 265ms | 329ms | Firebase |
| Composite | 73 | 72 | Firebase |
Firebase outperforms Microsoft in 5 of 7 categories, with a stronger composite score (73 vs 72). Microsoft leads in accessibility, security.
Choose Firebase when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Microsoft when your primary concern is accessibility and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 24 audited Firebase 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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