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Chartbeat vs core-js

Based on 157 and 1582 real audits

View Chartbeat details | View core-js details
MetricChartbeatcore-jsWinner
Performance3236core-js
Accessibility8588core-js
Best Practices8384core-js
SEO9191Tie
Security6365core-js
TTFB230ms374msChartbeat
Composite7272Tie
Performance
Chartbeat
32
core-js
36
Accessibility
Chartbeat
85
core-js
88
Security
Chartbeat
63
core-js
65
SEO
Chartbeat
91
core-js
91
Composite
Chartbeat
72
core-js
72

core-js outperforms Chartbeat in 4 of 7 categories, with a stronger composite score (72 vs 72). Chartbeat leads in TTFB.

When to choose Chartbeat

Choose Chartbeat 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 performance and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 157 audited Chartbeat sites and 1582 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 →

FAQ

Which is faster, Chartbeat or core-js?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 32 on average).
Which has better security, Chartbeat or core-js?
core-js sites score higher on security analysis (65 vs 63 on average).
Which has better accessibility, Chartbeat or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 85). 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, Chartbeat or core-js?
Chartbeat sites score higher on Lighthouse SEO signals (91 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), Chartbeat or core-js?
Chartbeat sites show lower Time to First Byte (230 ms vs 374 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 Chartbeat or core-js for my website?
Both platforms have trade-offs. core-js scores higher on overall composite score while Chartbeat 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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