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core-js vs Happy Returns

Based on 1599 and 2 real audits

View core-js details | View Happy Returns details
Metriccore-jsHappy ReturnsWinner
Performance3626core-js
Accessibility8867core-js
Best Practices8486Happy Returns
SEO9192Happy Returns
Security6576Happy Returns
TTFB379ms189msHappy Returns
Composite7273Happy Returns
Performance
core-js
36
Happy Returns
26
Accessibility
core-js
88
Happy Returns
67
Security
core-js
65
Happy Returns
76
SEO
core-js
91
Happy Returns
92
Composite
core-js
72
Happy Returns
73

Happy Returns outperforms core-js in 5 of 7 categories, with a stronger composite score (73 vs 72). core-js leads in performance, accessibility.

When to choose core-js

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

When to choose Happy Returns

Choose Happy Returns 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 1599 audited core-js sites and 2 audited Happy Returns 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 Happy Returns?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 26 on average).
Which has better security, core-js or Happy Returns?
Happy Returns sites score higher on security analysis (76 vs 65 on average).
Which has better accessibility, core-js or Happy Returns?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 67). 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 Happy Returns?
Happy Returns sites score higher on Lighthouse SEO signals (92 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 Happy Returns?
Happy Returns sites show lower Time to First Byte (189 ms vs 379 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 Happy Returns 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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