What does a domain WHOIS or RDAP lookup show?
WHOIS and RDAP provide public registry information such as domain status, registrar, nameservers and selected registration dates. Available fields depend on the registry and its privacy policy. A lookup does not necessarily reveal the domain holder's identity.
RDAP is the structured successor to traditional WHOIS. Use the result to review technical details and plan the next step when managing a domain.
How to read the result
Start with the domain status, registrar, creation and expiry dates, and nameservers. Registry status codes may indicate a transfer lock, a pending change or restrictions on domain operations.
Domain transfers and AuthInfo
A lookup can help identify the current registrar and transfer restrictions. It does not initiate a transfer or replace the AuthInfo or EPP code required by many registries. Before transferring, check the expiry date and retain a copy of your DNS records.
What to check next
Confirm the domain's status, validity and DNS delegation. For a working website or email service, make sure the nameservers match your intended provider. A registrar transfer and a nameserver change are separate operations.
Domain holder privacy
Personal details may be withheld under data protection rules or registry policy. Missing contact details do not mean a domain is unregistered. Public status, registrar and DNS information may still help you investigate a problem.
Using WHOIS when email, DNS or SSL stops working
Check for expiry, changed nameservers or restrictive status codes. This helps distinguish a registration problem from hosting, certificate or mail configuration issues. A WHOIS result does not replace checking A, AAAA, MX, SPF, DKIM or DMARC records.
Limits of public registry data
An empty RDAP result is not proof that a domain is available to register. Registries publish different fields, and services may temporarily be unavailable. To buy a domain, use the separate domain availability search.
What to send to technical support
Include the full domain name, symptoms, when the problem started, the last DNS change and the relevant lookup result. Do not send passwords or private keys.