Based on 1930 and 113 real audits
| Metric | core-js | LottieFiles | Winner |
|---|---|---|---|
| Performance | 37 | 40 | LottieFiles |
| Accessibility | 88 | 90 | LottieFiles |
| Best Practices | 85 | 89 | LottieFiles |
| SEO | 91 | 92 | LottieFiles |
| Security | 68 | 69 | LottieFiles |
| TTFB | 476ms | 378ms | LottieFiles |
| Composite | 74 | 74 | Tie |
LottieFiles outperforms core-js in 6 of 7 categories, with a stronger composite score (74 vs 74). core-js leads in no categories.
core-js doesn't clearly lead LottieFiles in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose LottieFiles when your primary concern is server response time and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1930 audited core-js sites and 113 audited LottieFiles 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 →
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