| Metric | Isotope | Leafly | Winner |
|---|---|---|---|
| Performance | 46 | 46 | Tie |
| Accessibility | 85 | 91 | Leafly |
| Best Practices | 86 | 92 | Leafly |
| SEO | 90 | 100 | Leafly |
| Security | 66 | 76 | Leafly |
| TTFB | 554ms | 313ms | Leafly |
| Composite | 74 | 82 | Leafly |
Leafly outperforms Isotope in 6 of 7 categories, with a stronger composite score (82 vs 74). Isotope leads in no categories.
Isotope doesn't clearly lead Leafly in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Choose Leafly when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 51 audited Isotope sites and 1 audited Leafly 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 →
Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.
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