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core-js vs Wunderkind

Based on 1582 and 6 real audits

View core-js details | View Wunderkind details
Metriccore-jsWunderkindWinner
Performance3632core-js
Accessibility8885core-js
Best Practices8480core-js
SEO9191Tie
Security6567Wunderkind
TTFB374ms212msWunderkind
Composite7272Tie
Performance
core-js
36
Wunderkind
32
Accessibility
core-js
88
Wunderkind
85
Security
core-js
65
Wunderkind
67
SEO
core-js
91
Wunderkind
91
Composite
core-js
72
Wunderkind
72

core-js outperforms Wunderkind in 3 of 7 categories, with a stronger composite score (72 vs 72). Wunderkind leads in security, TTFB.

When to choose core-js

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

When to choose Wunderkind

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

How this comparison was built

Scores are medians across 1582 audited core-js sites and 6 audited Wunderkind 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 →

Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.

FAQ

Which is faster, core-js or Wunderkind?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 32 on average).
Which has better security, core-js or Wunderkind?
Wunderkind sites score higher on security analysis (67 vs 65 on average).
Which has better accessibility, core-js or Wunderkind?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 85). 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, core-js or Wunderkind?
core-js sites score higher on Lighthouse SEO signals (91 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), core-js or Wunderkind?
Wunderkind sites show lower Time to First Byte (212 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 core-js or Wunderkind for my website?
Both platforms have trade-offs. core-js scores higher on overall composite score while core-js 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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