Domain & registry tools
Who owns a domain, when it expires, and whether a name is free.
Domain & registry
Who owns a domain, when it expires, and whether a name is free.
WHOIS lookup
Registrar, dates, nameservers and status for any domain.
RDAP lookup
The structured registry record behind WHOIS.
Domain availability
Is the name free? Check the registry, then register it.
Domain Timeline
Every recorded change to a domain: registrar, dates, nameservers, records, certificate.
Subdomain finder
Host names seen in public certificate logs, with a check on which still resolve.
Registrar directory
Find a registrar by name, IANA ID or Nominet IPS tag.