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core-js vs Matomo Tag Manager

Based on 1582 and 28 real audits

View core-js details | View Matomo Tag Manager details
Metriccore-jsMatomo Tag ManagerWinner
Performance3648Matomo Tag Manager
Accessibility8888Tie
Best Practices8488Matomo Tag Manager
SEO9190core-js
Security6565Tie
TTFB374ms348msMatomo Tag Manager
Composite7274Matomo Tag Manager
Performance
core-js
36
Matomo Tag Manager
48
Accessibility
core-js
88
Matomo Tag Manager
88
Security
core-js
65
Matomo Tag Manager
65
SEO
core-js
91
Matomo Tag Manager
90
Composite
core-js
72
Matomo Tag Manager
74

Matomo Tag Manager outperforms core-js in 4 of 7 categories, with a stronger composite score (74 vs 72). core-js leads in SEO.

When to choose core-js

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

When to choose Matomo Tag Manager

Choose Matomo Tag Manager 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 1582 audited core-js sites and 28 audited Matomo Tag Manager 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 Matomo Tag Manager?
Based on real BeaverCheck audits, Matomo Tag Manager sites score higher on Lighthouse performance (48 vs 36 on average).
Which has better security, core-js or Matomo Tag Manager?
core-js sites score higher on security analysis (65 vs 65 on average).
Which has better accessibility, core-js or Matomo Tag Manager?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 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 Matomo Tag Manager?
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 Matomo Tag Manager?
Matomo Tag Manager sites show lower Time to First Byte (348 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 Matomo Tag Manager for my website?
Both platforms have trade-offs. Matomo Tag Manager 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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