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core-js vs Squarespace Commerce

Based on 1582 and 13 real audits

View core-js details | View Squarespace Commerce details
Metriccore-jsSquarespace CommerceWinner
Performance3632core-js
Accessibility8894Squarespace Commerce
Best Practices8497Squarespace Commerce
SEO9195Squarespace Commerce
Security6570Squarespace Commerce
TTFB374ms333msSquarespace Commerce
Composite7275Squarespace Commerce
Performance
core-js
36
Squarespace Commerce
32
Accessibility
core-js
88
Squarespace Commerce
94
Security
core-js
65
Squarespace Commerce
70
SEO
core-js
91
Squarespace Commerce
95
Composite
core-js
72
Squarespace Commerce
75

Squarespace Commerce outperforms core-js in 6 of 7 categories, with a stronger composite score (75 vs 72). core-js leads in performance.

When to choose core-js

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

When to choose Squarespace Commerce

Choose Squarespace Commerce 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 1582 audited core-js sites and 13 audited Squarespace Commerce 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 Squarespace Commerce?
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 Squarespace Commerce?
Squarespace Commerce sites score higher on security analysis (70 vs 65 on average).
Which has better accessibility, core-js or Squarespace Commerce?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Squarespace Commerce (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 Commerce?
Squarespace Commerce sites score higher on Lighthouse SEO signals (95 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 Commerce?
Squarespace Commerce sites show lower Time to First Byte (333 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 Squarespace Commerce 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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