Free domain tools

Look up any domain’s registration details — registrar, creation and expiry dates, status and nameservers — with a live WHOIS/RDAP query.

Check a domain’s live DNS records — A, AAAA, MX, NS, TXT and CNAME — resolved in real time.

Check a website’s SSL/TLS certificate — issuer, expiry date, days remaining and the domains it covers.

Enter a keyword and get brandable domain ideas that are actually available to register right now.

Estimate what a domain is worth from real comparable sales, plus a quality score with the factors that help or hurt its value.

Check whether a DNS change has propagated by querying several global resolvers at once and comparing what each one returns.

Convert an internationalized domain (IDN) to its ASCII Punycode (xn--) form and back — for any language or emoji domain.

Look up registration status for a whole list of domains at once — registered, available, registrar and expiry, side by side.

Compare domain extensions side by side — price, renewal, free WHOIS privacy, grace period and any registration restrictions.

Real, publicly reported domain sale prices, updated daily — the comps behind the appraisal tool.