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core-js vs Shopify

Based on 1570 and 74 real audits

View core-js details | View Shopify details
Metriccore-jsShopifyWinner
Performance3632core-js
Accessibility8886core-js
Best Practices8482core-js
SEO9191Tie
Security6571Shopify
TTFB371ms267msShopify
Composite7273Shopify
Performance
core-js
36
Shopify
32
Accessibility
core-js
88
Shopify
86
Security
core-js
65
Shopify
71
SEO
core-js
91
Shopify
91
Composite
core-js
72
Shopify
73

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

When to choose core-js

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

When to choose Shopify

Choose Shopify 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 1570 audited core-js sites and 74 audited Shopify 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 Shopify?
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 Shopify?
Shopify sites score higher on security analysis (71 vs 65 on average).
Which has better accessibility, core-js or Shopify?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 86). 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 Shopify?
core-js sites score higher on Lighthouse SEO signals (91 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 Shopify?
Shopify sites show lower Time to First Byte (267 ms vs 371 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 Shopify 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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