Based on 63 and 4 real audits
| Metric | Google Tag Manager | Impact | Winner |
|---|---|---|---|
| Performance | 41 | 26 | Google Tag Manager |
| Accessibility | 89 | 94 | Impact |
| Best Practices | 88 | 79 | Google Tag Manager |
| SEO | 92 | 96 | Impact |
| Security | 65 | 65 | Tie |
| TTFB | 395ms | 389ms | Impact |
| Composite | 74 | 72 | Google Tag Manager |
Google Tag Manager and Impact are closely matched, each leading in different categories. Google Tag Manager has a composite score of 74 while Impact scores 72.
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