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Amazon S3 vs AWS

Based on 231 and 425 real audits

View Amazon S3 details | View AWS details
MetricAmazon S3AWSWinner
Performance3839AWS
Accessibility8988Amazon S3
Best Practices8587AWS
SEO9291Amazon S3
Security6866Amazon S3
TTFB231ms261msAmazon S3
Composite7372Amazon S3
Performance
Amazon S3
38
AWS
39
Accessibility
Amazon S3
89
AWS
88
Security
Amazon S3
68
AWS
66
SEO
Amazon S3
92
AWS
91
Composite
Amazon S3
73
AWS
72

Amazon S3 outperforms AWS in 5 of 7 categories, with a stronger composite score (73 vs 72). AWS leads in performance, best practices.

When to choose Amazon S3

Choose Amazon S3 when your primary concern is server response time and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose AWS

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

How this comparison was built

Scores are medians across 231 audited Amazon S3 sites and 425 audited AWS 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, Amazon S3 or AWS?
Based on real BeaverCheck audits, AWS sites score higher on Lighthouse performance (39 vs 38 on average).
Which has better security, Amazon S3 or AWS?
Amazon S3 sites score higher on security analysis (68 vs 66 on average).
Which has better accessibility, Amazon S3 or AWS?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Amazon S3 (89 vs 88). 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, Amazon S3 or AWS?
Amazon S3 sites score higher on Lighthouse SEO signals (92 vs 91 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), Amazon S3 or AWS?
Amazon S3 sites show lower Time to First Byte (231 ms vs 261 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 Amazon S3 or AWS for my website?
Both platforms have trade-offs. AWS scores higher on overall composite score while Amazon S3 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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