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core-js vs ZURB Foundation

Based on 1599 and 93 real audits

View core-js details | View ZURB Foundation details
Metriccore-jsZURB FoundationWinner
Performance3638ZURB Foundation
Accessibility8887core-js
Best Practices8485ZURB Foundation
SEO9190core-js
Security6565Tie
TTFB379ms375msZURB Foundation
Composite7272Tie
Performance
core-js
36
ZURB Foundation
38
Accessibility
core-js
88
ZURB Foundation
87
Security
core-js
65
ZURB Foundation
65
SEO
core-js
91
ZURB Foundation
90
Composite
core-js
72
ZURB Foundation
72

ZURB Foundation outperforms core-js in 3 of 7 categories, with a stronger composite score (72 vs 72). core-js leads in accessibility, SEO.

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.

When to choose ZURB Foundation

Choose ZURB Foundation when your primary concern is server response time and performance. 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 93 audited ZURB Foundation 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 ZURB Foundation?
Based on real BeaverCheck audits, ZURB Foundation sites score higher on Lighthouse performance (38 vs 36 on average).
Which has better security, core-js or ZURB Foundation?
core-js sites score higher on security analysis (65 vs 65 on average).
Which has better accessibility, core-js or ZURB Foundation?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 87). 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 ZURB Foundation?
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), core-js or ZURB Foundation?
ZURB Foundation sites show lower Time to First Byte (375 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 ZURB Foundation for my website?
Both platforms have trade-offs. ZURB Foundation 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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