OpenSiteTrust · Website trust score
Enter a domain or paste a full URL; we'll extract the domain.
Enter/Ctrl+Enter · Esc · ↑/↓
Examples: example.com, foo.shop
How it works
- We fetch signals: HTTPS headers, DNSSEC, email auth (SPF/DMARC/MX), TLS expiry, SEO tags, transparency pages.
- We compute S/C/T and blend Community (U) only when there are votes, with smoothing and ramp.
- Caching avoids repeated work within 30 minutes; you can still refresh by revisiting later.