WHOIS Lookup
About the WHOIS Lookup
WHOIS Lookup queries the public registration records for a domain name and returns details such as the registrar of record, the original creation date, the most recent update, the upcoming expiration date, the domain's current status codes, and the authoritative name servers. Behind the scenes it consults the registry's WHOIS or RDAP service, parses the response into clean fields, and presents both registration ownership and technical configuration in one view. Modern records are increasingly served over RDAP (Registration Data Access Protocol), the structured JSON successor to legacy port-43 WHOIS.
Many registrars now apply privacy protection or GDPR redaction, so the registrant's name, email, and address may be replaced with a privacy proxy or simply withheld. The lookup still surfaces the operationally useful, non-personal fields: registrar identity, status codes like clientTransferProhibited or pendingDelete, and the name server delegation. These status codes are EPP (Extensible Provisioning Protocol) codes and tell you whether a domain is locked against transfers, in a grace period, or heading toward release.
Common use cases include verifying that a domain you want to acquire is actually expiring soon, confirming who to contact for a domain dispute or acquisition, diagnosing why a site is unreachable after an apparent lapse, and checking the registrar before a transfer. It pairs naturally with a Domain Age Checker for trust signals and with DNS or Name Server lookups when you need to confirm the technical delegation matches the registration record.
Practical tips: the creation date in WHOIS is the registration date, not necessarily when the current owner acquired it, since domains change hands without resetting that field. Some country-code TLDs (ccTLDs) expose very limited WHOIS data or rate-limit aggressively, so a sparse result is often a registry policy rather than a missing domain. Always cross-check the expiration date against the registrar of record, because resellers can show different renewal dates than the underlying registry.
Frequently asked questions
- What is the difference between WHOIS and RDAP?
- WHOIS is the older plain-text port-43 protocol, while RDAP returns the same registration data as structured JSON with standardized fields and better support for internationalization and access control. Most gTLD registries now serve RDAP, and many WHOIS tools query RDAP under the hood.
- Why is the registrant's name hidden in my results?
- Privacy protection services and GDPR redaction commonly mask personal contact details. Registrars replace the registrant name, email, and address with a privacy proxy, so you typically only see the registrar, dates, status codes, and name servers.
- Does the creation date show when the current owner bought the domain?
- No. The creation date is when the domain was first registered. Domains transfer between owners without resetting that field, so an old creation date does not prove continuous ownership by one party.
- What do status codes like clientTransferProhibited mean?
- They are EPP status codes set by the registrar or registry. clientTransferProhibited means the domain is locked against transfers, while codes like pendingDelete or redemptionPeriod indicate the domain is in a lifecycle stage near expiration.