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Fastly vs Microsoft

Based on 376 and 2412 real audits

View Fastly details | View Microsoft details
MetricFastlyMicrosoftWinner
Performance4539Fastly
Accessibility9189Fastly
Best Practices8986Fastly
SEO9289Fastly
Security6666Tie
TTFB148ms329msFastly
Composite7472Fastly
Performance
Fastly
45
Microsoft
39
Accessibility
Fastly
91
Microsoft
89
Security
Fastly
66
Microsoft
66
SEO
Fastly
92
Microsoft
89
Composite
Fastly
74
Microsoft
72

Fastly outperforms Microsoft in 6 of 7 categories, with a stronger composite score (74 vs 72). Microsoft leads in no categories.

When to choose Fastly

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

When to choose Microsoft

Microsoft doesn't clearly lead Fastly in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.

How this comparison was built

Scores are medians across 376 audited Fastly sites and 2412 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, Fastly or Microsoft?
Based on real BeaverCheck audits, Fastly sites score higher on Lighthouse performance (45 vs 39 on average).
Which has better security, Fastly or Microsoft?
Fastly sites score higher on security analysis (66 vs 66 on average).
Which has better accessibility, Fastly or Microsoft?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Fastly (91 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, Fastly or Microsoft?
Fastly sites score higher on Lighthouse SEO signals (92 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), Fastly or Microsoft?
Fastly sites show lower Time to First Byte (148 ms vs 329 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 Fastly or Microsoft for my website?
Both platforms have trade-offs. Fastly scores higher on overall composite score while Fastly 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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