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core-js vs Jetpack

Based on 1679 and 13 real audits

Metriccore-jsJetpackWinner
Performance3657Jetpack
Accessibility8885core-js
Best Practices8488Jetpack
SEO9192Jetpack
Security6668Jetpack
TTFB392ms259msJetpack
Composite7376Jetpack
Performance
core-js
36
Jetpack
57
Accessibility
core-js
88
Jetpack
85
Security
core-js
66
Jetpack
68
SEO
core-js
91
Jetpack
92
Composite
core-js
73
Jetpack
76

Jetpack outperforms core-js in 6 of 7 categories, with a stronger composite score (76 vs 73). core-js leads in accessibility.

When to choose core-js

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

When to choose Jetpack

Choose Jetpack 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 1679 audited core-js sites and 13 audited Jetpack 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 Jetpack?
Based on real BeaverCheck audits, Jetpack sites score higher on Lighthouse performance (57 vs 36 on average).
Which has better security, core-js or Jetpack?
Jetpack sites score higher on security analysis (68 vs 66 on average).
Which has better accessibility, core-js or Jetpack?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 85). 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 Jetpack?
Jetpack 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 Jetpack?
Jetpack sites show lower Time to First Byte (259 ms vs 392 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 Jetpack for my website?
Both platforms have trade-offs. Jetpack 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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