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core-js vs Squarespace

Based on 1488 and 6 real audits

View core-js details | View Squarespace details
Metriccore-jsSquarespaceWinner
Performance3627core-js
Accessibility8894Squarespace
Best Practices8394Squarespace
SEO9192Squarespace
Security6461core-js
TTFB359ms125msSquarespace
Composite7271core-js
Performance
core-js
36
Squarespace
27
Accessibility
core-js
88
Squarespace
94
Security
core-js
64
Squarespace
61
SEO
core-js
91
Squarespace
92
Composite
core-js
72
Squarespace
71

Squarespace outperforms core-js in 4 of 7 categories, with a stronger composite score (71 vs 72). core-js leads in performance, security, composite score.

When to choose core-js

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

When to choose Squarespace

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

How this comparison was built

Scores are medians across 1488 audited core-js sites and 6 audited Squarespace 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 Squarespace?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 27 on average).
Which has better security, core-js or Squarespace?
core-js sites score higher on security analysis (64 vs 61 on average).
Which has better accessibility, core-js or Squarespace?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Squarespace (94 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 Squarespace?
Squarespace 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 Squarespace?
Squarespace sites show lower Time to First Byte (125 ms vs 359 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 Squarespace 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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