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core-js vs Transcy

Based on 1555 and 1 real audits

View core-js details | View Transcy details
Metriccore-jsTranscyWinner
Performance3645Transcy
Accessibility8873core-js
Best Practices8496Transcy
SEO9192Transcy
Security6579Transcy
TTFB370ms178msTranscy
Composite7278Transcy
Performance
core-js
36
Transcy
45
Accessibility
core-js
88
Transcy
73
Security
core-js
65
Transcy
79
SEO
core-js
91
Transcy
92
Composite
core-js
72
Transcy
78

Transcy outperforms core-js in 6 of 7 categories, with a stronger composite score (78 vs 72). core-js leads in accessibility.

When to choose core-js

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

When to choose Transcy

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

How this comparison was built

Scores are medians across 1555 audited core-js sites and 1 audited Transcy 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 Transcy?
Based on real BeaverCheck audits, Transcy sites score higher on Lighthouse performance (45 vs 36 on average).
Which has better security, core-js or Transcy?
Transcy sites score higher on security analysis (79 vs 65 on average).
Which has better accessibility, core-js or Transcy?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 73). 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 Transcy?
Transcy sites score higher on Lighthouse SEO signals (92 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 Transcy?
Transcy sites show lower Time to First Byte (178 ms vs 370 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 Transcy for my website?
Both platforms have trade-offs. Transcy 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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