Skip to content

core-js vs Performant Translations

Based on 1841 and 3 real audits

View core-js details | View Performant Translations details
Metriccore-jsPerformant TranslationsWinner
Performance3746Performant Translations
Accessibility8893Performant Translations
Best Practices8587Performant Translations
SEO9194Performant Translations
Security6773Performant Translations
TTFB439ms3020mscore-js
Composite7478Performant Translations
Performance
core-js
37
Performant Translations
46
Accessibility
core-js
88
Performant Translations
93
Security
core-js
67
Performant Translations
73
SEO
core-js
91
Performant Translations
94
Composite
core-js
74
Performant Translations
78

Performant Translations outperforms core-js in 6 of 7 categories, with a stronger composite score (78 vs 74). core-js leads in TTFB.

When to choose core-js

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

When to choose Performant Translations

Choose Performant Translations when your primary concern is performance and security. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1841 audited core-js sites and 3 audited Performant Translations 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 Performant Translations?
Based on real BeaverCheck audits, Performant Translations sites score higher on Lighthouse performance (46 vs 37 on average).
Which has better security, core-js or Performant Translations?
Performant Translations sites score higher on security analysis (73 vs 67 on average).
Which has better accessibility, core-js or Performant Translations?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Performant Translations (93 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 Performant Translations?
Performant Translations 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 Performant Translations?
core-js sites show lower Time to First Byte (439 ms vs 3020 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 Performant Translations for my website?
Both platforms have trade-offs. Performant Translations 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.
Audit your own site

Send Feedback