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Astra vs core-js

Based on 8 and 1637 real audits

View Astra details | View core-js details
MetricAstracore-jsWinner
Performance4536Astra
Accessibility8988Astra
Best Practices8084core-js
SEO8891core-js
Security7165Astra
TTFB2022ms385mscore-js
Composite7773Astra
Performance
Astra
45
core-js
36
Accessibility
Astra
89
core-js
88
Security
Astra
71
core-js
65
SEO
Astra
88
core-js
91
Composite
Astra
77
core-js
73

Astra outperforms core-js in 4 of 7 categories, with a stronger composite score (77 vs 73). core-js leads in best practices, SEO, TTFB.

When to choose Astra

Choose Astra when your primary concern is performance and security. 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 server response time and best practices. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 8 audited Astra sites and 1637 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, Astra or core-js?
Based on real BeaverCheck audits, Astra sites score higher on Lighthouse performance (45 vs 36 on average).
Which has better security, Astra or core-js?
Astra sites score higher on security analysis (71 vs 65 on average).
Which has better accessibility, Astra or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Astra (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, Astra or core-js?
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), Astra or core-js?
core-js sites show lower Time to First Byte (385 ms vs 2022 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 Astra or core-js for my website?
Both platforms have trade-offs. Astra scores higher on overall composite score while Astra 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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