| Metric | Isotope | Masonry | Winner |
|---|---|---|---|
| Performance | 44 | 45 | Masonry |
| Accessibility | 85 | 84 | Isotope |
| Best Practices | 87 | 88 | Masonry |
| SEO | 89 | 90 | Masonry |
| Security | 70 | 69 | Isotope |
| TTFB | 928ms | 714ms | Masonry |
| Composite | 76 | 75 | Isotope |
Masonry outperforms Isotope in 4 of 7 categories, with a stronger composite score (75 vs 76). Isotope leads in accessibility, security, composite score.
Choose Isotope when your primary concern is accessibility and security. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Masonry 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 75 audited Isotope sites and 154 audited Masonry 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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