Based on 2486 and 78 real audits
| Metric | Google Tag Manager | Radix UI | Winner |
|---|---|---|---|
| Performance | 40 | 38 | Google Tag Manager |
| Accessibility | 88 | 91 | Radix UI |
| Best Practices | 86 | 87 | Radix UI |
| SEO | 91 | 94 | Radix UI |
| Security | 64 | 67 | Radix UI |
| TTFB | 370ms | 239ms | Radix UI |
| Composite | 73 | 74 | Radix UI |
Radix UI outperforms Google Tag Manager in 6 of 7 categories, with a stronger composite score (74 vs 73). Google Tag Manager leads in performance.
Choose Google Tag Manager 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 and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2486 audited Google Tag Manager sites and 78 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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