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core-js vs Crazy Egg

Based on 1637 and 64 real audits

View core-js details | View Crazy Egg details
Metriccore-jsCrazy EggWinner
Performance3636Tie
Accessibility8890Crazy Egg
Best Practices8487Crazy Egg
SEO9193Crazy Egg
Security6564core-js
TTFB385ms738mscore-js
Composite7372core-js
Performance
core-js
36
Crazy Egg
36
Accessibility
core-js
88
Crazy Egg
90
Security
core-js
65
Crazy Egg
64
SEO
core-js
91
Crazy Egg
93
Composite
core-js
73
Crazy Egg
72

core-js and Crazy Egg are closely matched, each leading in different categories. core-js has a composite score of 73 while Crazy Egg scores 72.

When to choose core-js

Choose core-js 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 Crazy Egg

Choose Crazy Egg when your primary concern is best practices and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1637 audited core-js sites and 64 audited Crazy Egg 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, core-js or Crazy Egg?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 36 on average).
Which has better security, core-js or Crazy Egg?
core-js sites score higher on security analysis (65 vs 64 on average).
Which has better accessibility, core-js or Crazy Egg?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Crazy Egg (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, core-js or Crazy Egg?
Crazy Egg 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), core-js or Crazy Egg?
core-js sites show lower Time to First Byte (385 ms vs 738 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 Crazy Egg 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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