New5 aggregation pages, public API, watchlist alerts & more →
DNS · SSL · email security · subdomains · AI summary — all free

Everything about a domain. In one page.

RDAP/WHOIS, live DNS, SSL certificates, SPF/DMARC scoring, subdomains, reverse-IP neighbors, ownership history, Wayback timeline, and an AI-written summary — all for any hostname. No signup. Indexable.

1.0M
Domains indexed
1.0M
TLDs covered
60 req/min · free
Public API

Built to replace your WHOIS bookmark

Live DNS + DNSSEC

A, AAAA, MX, TXT, NS, CAA via Cloudflare DoH. DNSSEC chain validated.

SSL transparency

Active and historical certificates pulled from CT logs. Days to expiry at a glance.

Email security score

SPF, DMARC, MTA-STS, BIMI checked and weighted into a single score.

Subdomains + reverse IP

CT-log subdomain discovery and ASN/neighbor enumeration for any hostname.

Ownership & Wayback

Registrar/NS history we record over time, plus first-seen from the Internet Archive.

AI summary

Plain-English summary of who runs the domain and what looks healthy or risky.

Health & security scores

Two scores out of 100 from RDAP status, expiry, NS hygiene, and EPP locks.

HTTP & redirects

Final URL, redirect chain, HSTS, CSP, and other security headers in one card.

Same-TLD neighbors

Cross-link to comparable domains and rank-relative peers.

Bulk lookup

Paste up to 100 domains. Get registrar, owner, expiry, NS, and health as CSV.

Watchlist + alerts

Track domains. We log registrar, owner, NS, and expiry changes hourly.

Public JSON API

GET /api/public/v1/domain/{host}. Free, open CORS, 60 req/min/IP.

Latest lookups

Top ranked

Browse by TLD

Use it from the command line

JSON for any domain. No key. Open CORS.

Read the docs →
curl https://domainintel.lovable.app/api/public/v1/domain/openai.com