Based on 271 and 97 real audits
| Metric | Next.js App Router | Radix UI | Winner |
|---|---|---|---|
| Performance | 44 | 42 | Next.js App Router |
| Accessibility | 91 | 91 | Tie |
| Best Practices | 89 | 89 | Tie |
| SEO | 94 | 94 | Tie |
| Security | 70 | 70 | Tie |
| TTFB | 373ms | 295ms | Radix UI |
| Composite | 76 | 76 | Tie |
Next.js App Router and Radix UI are closely matched, each leading in different categories. Next.js App Router has a composite score of 76 while Radix UI scores 76.
Choose Next.js App Router when your primary concern is performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Radix UI when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 271 audited Next.js App Router sites and 97 audited Radix UI 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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