WHOIS Lookup
See which registrar holds a domain, how old it is and when it expires, from the registry's official RDAP data.
Inspect registration data of a domain
The registry for the domain's extension is found through IANA's RDAP list and asked for the registrar, creation, expiry and change dates, name servers, status codes and DNSSEC.
Interpret the result
Check that the expiry date is far enough away, that the registrar and name servers are the ones you expect, and that transfer locks are in place.
Prioritize fixes
Personal contact details are redacted by most registries, some (such as .de) hide dates, and a few extensions like .cn or .jp publish no RDAP data at all.
How to interpret registration data of a domain
The registry for the domain's extension is found through IANA's RDAP list and asked for the registrar, creation, expiry and change dates, name servers, status codes and DNSSEC.
Limits of this check
Personal contact details are redacted by most registries, some (such as .de) hide dates, and a few extensions like .cn or .jp publish no RDAP data at all.
Frequently asked questions
What does this tool check?
The registry for the domain's extension is found through IANA's RDAP list and asked for the registrar, creation, expiry and change dates, name servers, status codes and DNSSEC.
How should I use the result?
Check that the expiry date is far enough away, that the registrar and name servers are the ones you expect, and that transfer locks are in place.
What are the limits?
Personal contact details are redacted by most registries, some (such as .de) hide dates, and a few extensions like .cn or .jp publish no RDAP data at all.
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