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core-js vs Optimise

Based on 1599 and 1 real audits

View core-js details | View Optimise details
Metriccore-jsOptimiseWinner
Performance3619core-js
Accessibility8880core-js
Best Practices8473core-js
SEO9185core-js
Security6564core-js
TTFB379ms461mscore-js
Composite7272Tie
Performance
core-js
36
Optimise
19
Accessibility
core-js
88
Optimise
80
Security
core-js
65
Optimise
64
SEO
core-js
91
Optimise
85
Composite
core-js
72
Optimise
72

core-js outperforms Optimise in 6 of 7 categories, with a stronger composite score (72 vs 72). Optimise leads in no categories.

When to choose core-js

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

When to choose Optimise

Optimise doesn't clearly lead core-js in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.

How this comparison was built

Scores are medians across 1599 audited core-js sites and 1 audited Optimise 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 Optimise?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 19 on average).
Which has better security, core-js or Optimise?
core-js sites score higher on security analysis (65 vs 64 on average).
Which has better accessibility, core-js or Optimise?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 80). 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 Optimise?
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), core-js or Optimise?
core-js sites show lower Time to First Byte (379 ms vs 461 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 Optimise 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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