Skip to content

Atatus vs core-js

Based on 1 and 1599 real audits

View Atatus details | View core-js details
MetricAtatuscore-jsWinner
Performance2536core-js
Accessibility7688core-js
Best Practices7784core-js
SEO8591core-js
Security6065core-js
TTFB24ms379msAtatus
Composite7072core-js
Performance
Atatus
25
core-js
36
Accessibility
Atatus
76
core-js
88
Security
Atatus
60
core-js
65
SEO
Atatus
85
core-js
91
Composite
Atatus
70
core-js
72

core-js outperforms Atatus in 6 of 7 categories, with a stronger composite score (72 vs 70). Atatus leads in TTFB.

When to choose Atatus

Choose Atatus when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose core-js

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

How this comparison was built

Scores are medians across 1 audited Atatus sites and 1599 audited core-js 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, Atatus or core-js?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 25 on average).
Which has better security, Atatus or core-js?
core-js sites score higher on security analysis (65 vs 60 on average).
Which has better accessibility, Atatus or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 76). 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, Atatus or core-js?
core-js sites score higher on Lighthouse SEO signals (91 vs 85 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), Atatus or core-js?
Atatus sites show lower Time to First Byte (24 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 Atatus or core-js for my website?
Both platforms have trade-offs. core-js scores higher on overall composite score while Atatus 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.
Audit your own site

Send Feedback