WHOIS Lookup
Look up any domain's registration (its registrar, when it was created, when it expires, its name servers and status codes) straight from the registry.
What is WHOIS?
WHOIS is the public directory of domain registrations. Every registry runs a WHOIS server that answers, over a simple text protocol, who registered a domain, through which registrar, when it was created and when it expires, and which name servers it points to. It's the quickest way to check whether a name is taken and to see a domain's registration health at a glance.
Thin vs. thick registries
Some registries (like .com and .net) are thin: the registry only stores a pointer to the registrar that holds the full record. This tool follows that referral automatically so you see the complete details rather than just a stub. Note that, since GDPR, many registrars redact registrant contact details from public WHOIS.