Based on 2705 and 1121 real audits
| Metric | Google Tag Manager | React | Winner |
|---|---|---|---|
| Performance | 41 | 40 | Google Tag Manager |
| Accessibility | 88 | 89 | React |
| Best Practices | 87 | 87 | Tie |
| SEO | 91 | 93 | React |
| Security | 66 | 68 | React |
| TTFB | 394ms | 356ms | React |
| Composite | 73 | 74 | React |
React outperforms Google Tag Manager in 5 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 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 2705 audited Google Tag Manager sites and 1121 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 →
Send Feedback