| Metric | Microsoft | Pantheon | Winner |
|---|---|---|---|
| Performance | 39 | 41 | Pantheon |
| Accessibility | 89 | 91 | Pantheon |
| Best Practices | 86 | 86 | Tie |
| SEO | 89 | 92 | Pantheon |
| Security | 66 | 65 | Microsoft |
| TTFB | 329ms | 179ms | Pantheon |
| Composite | 72 | 74 | Pantheon |
Pantheon outperforms Microsoft in 5 of 7 categories, with a stronger composite score (74 vs 72). Microsoft leads in security.
Choose Microsoft when your primary concern is security. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Pantheon when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2421 audited Microsoft sites and 77 audited Pantheon 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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