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Amazon S3 vs core-js

Based on 224 and 1582 real audits

View Amazon S3 details | View core-js details
MetricAmazon S3core-jsWinner
Performance3736Amazon S3
Accessibility8988Amazon S3
Best Practices8484Tie
SEO9291Amazon S3
Security6865Amazon S3
TTFB225ms374msAmazon S3
Composite7372Amazon S3
Performance
Amazon S3
37
core-js
36
Accessibility
Amazon S3
89
core-js
88
Security
Amazon S3
68
core-js
65
SEO
Amazon S3
92
core-js
91
Composite
Amazon S3
73
core-js
72

Amazon S3 outperforms core-js in 6 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in no categories.

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 core-js

core-js doesn't clearly lead Amazon S3 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 224 audited Amazon S3 sites and 1582 audited core-js 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 core-js?
Based on real BeaverCheck audits, Amazon S3 sites score higher on Lighthouse performance (37 vs 36 on average).
Which has better security, Amazon S3 or core-js?
Amazon S3 sites score higher on security analysis (68 vs 65 on average).
Which has better accessibility, Amazon S3 or core-js?
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 core-js?
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 core-js?
Amazon S3 sites show lower Time to First Byte (225 ms vs 374 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 core-js for my website?
Both platforms have trade-offs. Amazon S3 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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