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AOS vs core-js

Based on 64 and 1582 real audits

View AOS details | View core-js details
MetricAOScore-jsWinner
Performance4136AOS
Accessibility9088AOS
Best Practices8684AOS
SEO9091core-js
Security6665AOS
TTFB472ms374mscore-js
Composite7372AOS
Performance
AOS
41
core-js
36
Accessibility
AOS
90
core-js
88
Security
AOS
66
core-js
65
SEO
AOS
90
core-js
91
Composite
AOS
73
core-js
72

AOS outperforms core-js in 5 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in SEO, 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 core-js

Choose core-js when your primary concern is server response time and SEO. 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 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, AOS or core-js?
Based on real BeaverCheck audits, AOS sites score higher on Lighthouse performance (41 vs 36 on average).
Which has better security, AOS or core-js?
AOS sites score higher on security analysis (66 vs 65 on average).
Which has better accessibility, AOS or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor AOS (90 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, AOS or core-js?
core-js sites score higher on Lighthouse SEO signals (91 vs 90 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 core-js?
core-js sites show lower Time to First Byte (374 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 core-js 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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