| Metric | Microsoft | React | Winner |
|---|---|---|---|
| Performance | 39 | 37 | Microsoft |
| Accessibility | 89 | 89 | Tie |
| Best Practices | 86 | 87 | React |
| SEO | 89 | 93 | React |
| Security | 66 | 66 | Tie |
| TTFB | 329ms | 315ms | React |
| Composite | 72 | 73 | React |
React outperforms Microsoft in 4 of 7 categories, with a stronger composite score (73 vs 72). Microsoft leads in performance.
Choose Microsoft when your primary concern is performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose React when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2395 audited Microsoft sites and 977 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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