| Metric | GrowthBook | Prebid | Winner |
|---|---|---|---|
| Performance | 31 | 32 | Prebid |
| Accessibility | 84 | 83 | GrowthBook |
| Best Practices | 88 | 80 | GrowthBook |
| SEO | 92 | 88 | GrowthBook |
| Security | 57 | 64 | Prebid |
| TTFB | 271ms | 200ms | Prebid |
| Composite | 69 | 71 | Prebid |
Prebid outperforms GrowthBook in 4 of 7 categories, with a stronger composite score (71 vs 69). GrowthBook leads in accessibility, best practices, SEO.
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