| Metric | CallRail | core-js | Winner |
|---|---|---|---|
| Performance | 28 | 36 | core-js |
| Accessibility | 93 | 88 | CallRail |
| Best Practices | 86 | 83 | CallRail |
| SEO | 88 | 91 | core-js |
| Security | 66 | 64 | CallRail |
| TTFB | 404ms | 359ms | core-js |
| Composite | 72 | 72 | Tie |
CallRail and core-js are closely matched, each leading in different categories. CallRail has a composite score of 72 while core-js scores 72.
Choose CallRail when your primary concern is accessibility and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
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.
Scores are medians across 2 audited CallRail sites and 1488 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.
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