| Metric | Isotope | Masonry | Winner |
|---|---|---|---|
| Performance | 45 | 46 | Masonry |
| Accessibility | 84 | 84 | Tie |
| Best Practices | 87 | 88 | Masonry |
| SEO | 90 | 90 | Tie |
| Security | 68 | 66 | Isotope |
| TTFB | 573ms | 539ms | Masonry |
| Composite | 75 | 74 | Isotope |
Masonry outperforms Isotope in 3 of 7 categories, with a stronger composite score (74 vs 75). Isotope leads in security, composite score.
Choose Isotope when your primary concern is 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 60 audited Isotope sites and 125 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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