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AccessiBe vs core-js

Based on 20 and 1570 real audits

View AccessiBe details | View core-js details
MetricAccessiBecore-jsWinner
Performance3636Tie
Accessibility8688core-js
Best Practices8684AccessiBe
SEO9091core-js
Security6865AccessiBe
TTFB234ms371msAccessiBe
Composite7372AccessiBe
Performance
AccessiBe
36
core-js
36
Accessibility
AccessiBe
86
core-js
88
Security
AccessiBe
68
core-js
65
SEO
AccessiBe
90
core-js
91
Composite
AccessiBe
73
core-js
72

AccessiBe outperforms core-js in 4 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in accessibility, SEO.

When to choose AccessiBe

Choose AccessiBe 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

Choose core-js when your primary concern is accessibility and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 20 audited AccessiBe sites and 1570 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, AccessiBe or core-js?
Based on real BeaverCheck audits, AccessiBe sites score higher on Lighthouse performance (36 vs 36 on average).
Which has better security, AccessiBe or core-js?
AccessiBe sites score higher on security analysis (68 vs 65 on average).
Which has better accessibility, AccessiBe or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 86). 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, AccessiBe 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), AccessiBe or core-js?
AccessiBe sites show lower Time to First Byte (234 ms vs 371 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 AccessiBe or core-js for my website?
Both platforms have trade-offs. AccessiBe scores higher on overall composite score while AccessiBe 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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