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AOS vs Microsoft

Based on 64 and 2421 real audits

View AOS details | View Microsoft details
MetricAOSMicrosoftWinner
Performance4139AOS
Accessibility9089AOS
Best Practices8686Tie
SEO9089AOS
Security6666Tie
TTFB472ms329msMicrosoft
Composite7372AOS
Performance
AOS
41
Microsoft
39
Accessibility
AOS
90
Microsoft
89
Security
AOS
66
Microsoft
66
SEO
AOS
90
Microsoft
89
Composite
AOS
73
Microsoft
72

AOS outperforms Microsoft in 4 of 7 categories, with a stronger composite score (73 vs 72). Microsoft leads in TTFB.

When to choose AOS

Choose AOS when your primary concern is performance and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Microsoft

Choose Microsoft when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 64 audited AOS sites and 2421 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 →

FAQ

Which is faster, AOS or Microsoft?
Based on real BeaverCheck audits, AOS sites score higher on Lighthouse performance (41 vs 39 on average).
Which has better security, AOS or Microsoft?
AOS sites score higher on security analysis (66 vs 66 on average).
Which has better accessibility, AOS or Microsoft?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor AOS (90 vs 89). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, AOS or Microsoft?
AOS sites score higher on Lighthouse SEO signals (90 vs 89 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), AOS or Microsoft?
Microsoft sites show lower Time to First Byte (329 ms vs 472 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose AOS or Microsoft for my website?
Both platforms have trade-offs. AOS scores higher on overall composite score while AOS may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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