Based on 267 and 2550 real audits
| Metric | Amazon Advertising | Microsoft | Winner |
|---|---|---|---|
| Performance | 31 | 40 | Microsoft |
| Accessibility | 87 | 89 | Microsoft |
| Best Practices | 80 | 86 | Microsoft |
| SEO | 91 | 89 | Amazon Advertising |
| Security | 64 | 67 | Microsoft |
| TTFB | 334ms | 336ms | Amazon Advertising |
| Composite | 72 | 73 | Microsoft |
Microsoft outperforms Amazon Advertising in 5 of 7 categories, with a stronger composite score (73 vs 72). Amazon Advertising leads in SEO, TTFB.
Choose Amazon Advertising when your primary concern is SEO and server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Microsoft when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 267 audited Amazon Advertising sites and 2550 audited Microsoft 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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