Based on 2412 and 93 real audits
| Metric | Microsoft | ZURB Foundation | Winner |
|---|---|---|---|
| Performance | 39 | 38 | Microsoft |
| Accessibility | 89 | 87 | Microsoft |
| Best Practices | 86 | 85 | Microsoft |
| SEO | 89 | 90 | ZURB Foundation |
| Security | 66 | 65 | Microsoft |
| TTFB | 329ms | 375ms | Microsoft |
| Composite | 72 | 72 | Tie |
Microsoft outperforms ZURB Foundation in 5 of 7 categories, with a stronger composite score (72 vs 72). ZURB Foundation leads in SEO.
Choose Microsoft when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose ZURB Foundation when your primary concern is SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2412 audited Microsoft sites and 93 audited ZURB Foundation 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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