Based on 44 and 947 real audits
| Metric | Animate.css | Bootstrap | Winner |
|---|---|---|---|
| Performance | 45 | 47 | Bootstrap |
| Accessibility | 83 | 87 | Bootstrap |
| Best Practices | 87 | 88 | Bootstrap |
| SEO | 90 | 90 | Tie |
| Security | 66 | 66 | Tie |
| TTFB | 483ms | 473ms | Bootstrap |
| Composite | 74 | 74 | Tie |
Bootstrap outperforms Animate.css in 4 of 7 categories, with a stronger composite score (74 vs 74). Animate.css leads in no categories.
Animate.css doesn't clearly lead Bootstrap in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose Bootstrap when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 44 audited Animate.css sites and 947 audited Bootstrap 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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