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core-js vs NS1

Based on 1582 and 158 real audits

View core-js details | View NS1 details
Metriccore-jsNS1Winner
Performance3641NS1
Accessibility8891NS1
Best Practices8487NS1
SEO9188core-js
Security6567NS1
TTFB374ms186msNS1
Composite7273NS1
Performance
core-js
36
NS1
41
Accessibility
core-js
88
NS1
91
Security
core-js
65
NS1
67
SEO
core-js
91
NS1
88
Composite
core-js
72
NS1
73

NS1 outperforms core-js in 6 of 7 categories, with a stronger composite score (73 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 NS1

Choose NS1 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 158 audited NS1 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 NS1?
Based on real BeaverCheck audits, NS1 sites score higher on Lighthouse performance (41 vs 36 on average).
Which has better security, core-js or NS1?
NS1 sites score higher on security analysis (67 vs 65 on average).
Which has better accessibility, core-js or NS1?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor NS1 (91 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 NS1?
core-js sites score higher on Lighthouse SEO signals (91 vs 88 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 NS1?
NS1 sites show lower Time to First Byte (186 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 NS1 for my website?
Both platforms have trade-offs. NS1 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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