Based on 63 and 53 real audits
| Metric | Google Tag Manager | React | Winner |
|---|---|---|---|
| Performance | 41 | 40 | Google Tag Manager |
| Accessibility | 89 | 91 | React |
| Best Practices | 88 | 88 | Tie |
| SEO | 92 | 93 | React |
| Security | 65 | 65 | Tie |
| TTFB | 395ms | 456ms | Google Tag Manager |
| Composite | 74 | 73 | Google Tag Manager |
Google Tag Manager outperforms React in 3 of 7 categories, with a stronger composite score (74 vs 73). React leads in accessibility, SEO.
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