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core-js vs Level Access

Based on 1582 and 4 real audits

View core-js details | View Level Access details
Metriccore-jsLevel AccessWinner
Performance3638Level Access
Accessibility8889Level Access
Best Practices8484Tie
SEO9194Level Access
Security6563core-js
TTFB374ms205msLevel Access
Composite7272Tie
Performance
core-js
36
Level Access
38
Accessibility
core-js
88
Level Access
89
Security
core-js
65
Level Access
63
SEO
core-js
91
Level Access
94
Composite
core-js
72
Level Access
72

Level Access outperforms core-js in 4 of 7 categories, with a stronger composite score (72 vs 72). core-js leads in security.

When to choose core-js

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

When to choose Level Access

Choose Level Access when your primary concern is server response time and SEO. 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 4 audited Level Access 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 Level Access?
Based on real BeaverCheck audits, Level Access sites score higher on Lighthouse performance (38 vs 36 on average).
Which has better security, core-js or Level Access?
core-js sites score higher on security analysis (65 vs 63 on average).
Which has better accessibility, core-js or Level Access?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Level Access (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 Level Access?
Level Access sites score higher on Lighthouse SEO signals (94 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 Level Access?
Level Access sites show lower Time to First Byte (205 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 Level Access for my website?
Both platforms have trade-offs. Level Access 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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