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Ahrefs vs core-js

Based on 37 and 1570 real audits

View Ahrefs details | View core-js details
MetricAhrefscore-jsWinner
Performance3836Ahrefs
Accessibility8688core-js
Best Practices8884Ahrefs
SEO9391Ahrefs
Security6565Tie
TTFB289ms371msAhrefs
Composite7472Ahrefs
Performance
Ahrefs
38
core-js
36
Accessibility
Ahrefs
86
core-js
88
Security
Ahrefs
65
core-js
65
SEO
Ahrefs
93
core-js
91
Composite
Ahrefs
74
core-js
72

Ahrefs outperforms core-js in 5 of 7 categories, with a stronger composite score (74 vs 72). core-js leads in accessibility.

When to choose Ahrefs

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

How this comparison was built

Scores are medians across 37 audited Ahrefs 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, Ahrefs or core-js?
Based on real BeaverCheck audits, Ahrefs sites score higher on Lighthouse performance (38 vs 36 on average).
Which has better security, Ahrefs or core-js?
Ahrefs sites score higher on security analysis (65 vs 65 on average).
Which has better accessibility, Ahrefs 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, Ahrefs or core-js?
Ahrefs sites score higher on Lighthouse SEO signals (93 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), Ahrefs or core-js?
Ahrefs sites show lower Time to First Byte (289 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 Ahrefs or core-js for my website?
Both platforms have trade-offs. Ahrefs scores higher on overall composite score while Ahrefs 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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