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core-js vs SEO Manager

Based on 1599 and 1 real audits

View core-js details | View SEO Manager details
Metriccore-jsSEO ManagerWinner
Performance3626core-js
Accessibility8889SEO Manager
Best Practices8477core-js
SEO9192SEO Manager
Security6572SEO Manager
TTFB379ms175msSEO Manager
Composite7274SEO Manager
Performance
core-js
36
SEO Manager
26
Accessibility
core-js
88
SEO Manager
89
Security
core-js
65
SEO Manager
72
SEO
core-js
91
SEO Manager
92
Composite
core-js
72
SEO Manager
74

SEO Manager outperforms core-js in 5 of 7 categories, with a stronger composite score (74 vs 72). core-js leads in performance, best practices.

When to choose core-js

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

When to choose SEO Manager

Choose SEO Manager 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 1599 audited core-js sites and 1 audited SEO 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 →

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 SEO Manager?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 26 on average).
Which has better security, core-js or SEO Manager?
SEO Manager sites score higher on security analysis (72 vs 65 on average).
Which has better accessibility, core-js or SEO Manager?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor SEO Manager (89 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 SEO Manager?
SEO Manager 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 SEO Manager?
SEO Manager sites show lower Time to First Byte (175 ms vs 379 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 SEO Manager 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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