| Metric | Bootstrap | Popper | Winner |
|---|---|---|---|
| Performance | 46 | 44 | Bootstrap |
| Accessibility | 87 | 88 | Popper |
| Best Practices | 88 | 88 | Tie |
| SEO | 90 | 89 | Bootstrap |
| Security | 65 | 64 | Bootstrap |
| TTFB | 432ms | 313ms | Popper |
| Composite | 74 | 73 | Bootstrap |
Bootstrap outperforms Popper in 4 of 7 categories, with a stronger composite score (74 vs 73). Popper leads in accessibility, TTFB.
Choose Bootstrap when your primary concern is performance and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Popper 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 903 audited Bootstrap sites and 116 audited Popper 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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