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core-js vs Shopify Buy Button

Based on 1488 and 3 real audits

View core-js details | View Shopify Buy Button details
Metriccore-jsShopify Buy ButtonWinner
Performance3640Shopify Buy Button
Accessibility8883core-js
Best Practices8378core-js
SEO9192Shopify Buy Button
Security6464Tie
TTFB359ms202msShopify Buy Button
Composite7270core-js
Performance
core-js
36
Shopify Buy Button
40
Accessibility
core-js
88
Shopify Buy Button
83
Security
core-js
64
Shopify Buy Button
64
SEO
core-js
91
Shopify Buy Button
92
Composite
core-js
72
Shopify Buy Button
70

core-js and Shopify Buy Button are closely matched, each leading in different categories. core-js has a composite score of 72 while Shopify Buy Button scores 70.

When to choose core-js

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

When to choose Shopify Buy Button

Choose Shopify Buy Button 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 1488 audited core-js sites and 3 audited Shopify Buy Button 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 Shopify Buy Button?
Based on real BeaverCheck audits, Shopify Buy Button sites score higher on Lighthouse performance (40 vs 36 on average).
Which has better security, core-js or Shopify Buy Button?
core-js sites score higher on security analysis (64 vs 64 on average).
Which has better accessibility, core-js or Shopify Buy Button?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 83). 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 Buy Button?
Shopify Buy Button 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 Shopify Buy Button?
Shopify Buy Button sites show lower Time to First Byte (202 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 Shopify Buy Button for my website?
Both platforms have trade-offs. Shopify Buy Button 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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