WHOIS Lookup
Show registrar, registration and expiry dates, status and nameservers for a domain.
Registration data comes from RDAP, the registry standard that replaced plain WHOIS. We ask the IANA bootstrap directory which registry to query, so the request goes to the registry itself; rdap.org is the fallback. Free, no API key.
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History for this tool
The most recent data you entered in this tool, stored only in this browser.
Save what you type here, in this browser? Your work would go into this browser's local storage, so a refresh or a trip to another tool does not wipe it. You also get a short list of previous entries under the form, each one restorable with a click. Nothing is ever uploaded, and there is no account.
Being straight about the trade-off: anything kept there can be read by anyone who can use this browser profile, and by any script that later runs on this site. A tool page can hold a private key, a password or a signed token. Saving is convenient; it is not private.
About this tool
Show the registrar, registration and expiry dates, status codes and nameservers for a domain. It reads the registry’s own RDAP service, discovered from the IANA bootstrap directory, so there is no third-party proxy in the middle. When a registry publishes no RDAP service at all, the tool says so instead of guessing.Questions
- Why do some domains return nothing?
- A few registries still publish no RDAP endpoint. Without one there is no machine-readable record for the tool to fetch, so it reports that instead of showing an empty panel.
- Why is the registrant hidden?
- Since GDPR, most registries redact personal details on private registrations. The tool tells you when the response has been redacted rather than showing blanks.
- What is the difference between RDAP and WHOIS?
- RDAP is the structured HTTPS replacement for the old port-43 WHOIS protocol. It returns JSON instead of free text, so the fields can be labelled reliably rather than pattern-matched.