Based on 1038 and 27 real audits
| Metric | Bootstrap | parallax.js | Winner |
|---|---|---|---|
| Performance | 47 | 49 | parallax.js |
| Accessibility | 87 | 88 | parallax.js |
| Best Practices | 88 | 91 | parallax.js |
| SEO | 91 | 91 | Tie |
| Security | 67 | 71 | parallax.js |
| TTFB | 456ms | 612ms | Bootstrap |
| Composite | 75 | 76 | parallax.js |
parallax.js outperforms Bootstrap in 5 of 7 categories, with a stronger composite score (76 vs 75). Bootstrap leads in TTFB.
Choose Bootstrap when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose parallax.js when your primary concern is security and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1038 audited Bootstrap sites and 27 audited parallax.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 →
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