Based on 633 and 341 real audits
| Metric | Facebook SDK | Microsoft Clarity | Winner |
|---|---|---|---|
| Performance | 32 | 33 | Microsoft Clarity |
| Accessibility | 88 | 90 | Microsoft Clarity |
| Best Practices | 79 | 83 | Microsoft Clarity |
| SEO | 91 | 92 | Microsoft Clarity |
| Security | 64 | 65 | Microsoft Clarity |
| TTFB | 392ms | 401ms | Facebook SDK |
| Composite | 72 | 72 | Tie |
Microsoft Clarity outperforms Facebook SDK in 5 of 7 categories, with a stronger composite score (72 vs 72). Facebook SDK leads in TTFB.
Choose Facebook SDK when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Microsoft Clarity when your primary concern is best practices and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 633 audited Facebook SDK sites and 341 audited Microsoft Clarity 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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