| Metric | Microsoft | React | Winner |
|---|---|---|---|
| Performance | 39 | 39 | Tie |
| Accessibility | 89 | 89 | Tie |
| Best Practices | 86 | 87 | React |
| SEO | 89 | 93 | React |
| Security | 67 | 67 | Tie |
| TTFB | 329ms | 342ms | Microsoft |
| Composite | 73 | 74 | React |
React outperforms Microsoft in 3 of 7 categories, with a stronger composite score (74 vs 73). Microsoft leads in TTFB.
Choose Microsoft when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose React when your primary concern is SEO and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2444 audited Microsoft sites and 1039 audited React 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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