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core-js vs Yandex.Metrika

Based on 1582 and 47 real audits

View core-js details | View Yandex.Metrika details
Metriccore-jsYandex.MetrikaWinner
Performance3645Yandex.Metrika
Accessibility8872core-js
Best Practices8487Yandex.Metrika
SEO9190core-js
Security6563core-js
TTFB374ms390mscore-js
Composite7271core-js
Performance
core-js
36
Yandex.Metrika
45
Accessibility
core-js
88
Yandex.Metrika
72
Security
core-js
65
Yandex.Metrika
63
SEO
core-js
91
Yandex.Metrika
90
Composite
core-js
72
Yandex.Metrika
71

core-js outperforms Yandex.Metrika in 5 of 7 categories, with a stronger composite score (72 vs 71). Yandex.Metrika leads in performance, best practices.

When to choose core-js

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

When to choose Yandex.Metrika

Choose Yandex.Metrika when your primary concern is performance 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 47 audited Yandex.Metrika 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 Yandex.Metrika?
Based on real BeaverCheck audits, Yandex.Metrika sites score higher on Lighthouse performance (45 vs 36 on average).
Which has better security, core-js or Yandex.Metrika?
core-js sites score higher on security analysis (65 vs 63 on average).
Which has better accessibility, core-js or Yandex.Metrika?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 72). 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 Yandex.Metrika?
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 Yandex.Metrika?
core-js sites show lower Time to First Byte (374 ms vs 390 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 Yandex.Metrika for my website?
Both platforms have trade-offs. Yandex.Metrika 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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