whois/

Most registrars no longer publish personal data, for privacy reasons and because of data protection laws such as the EU’s GDPR. Fields marked “Redacted” on this page are the ones the registrar declared hidden. Many domains also use a privacy service, in which case the name and address of the proxy company are shown. To contact the domain owner, use the web page the registrar provides in the “Contact form” row, or look for the contact details on the website itself.

Not necessarily. It only means the registry’s database has no entry for this name right now. Reserved words, premium domains and names that have just expired and are being deleted can also come back empty. Whether you can register it, and at what price, is decided by what a registrar’s website shows when you search for it.

This is one of the standard EPP status codes listed by ICANN. Codes that start with client are set by the registrar, and those that start with server are set by the registry. transfer prohibited means the domain cannot be moved to another registrar, which is what people call a transfer lock; update prohibited and delete prohibited block changes and deletion; hold means the domain is suspended and stops resolving; redemption period and pending delete mean the domain has expired and is being deleted; ok or active means there are no restrictions. Click a status to open ICANN’s explanation.

.com, .org, .net and most new TLDs offer RDAP, which returns data in one standard format. Country and region TLDs such as .io, .co, .cn, .de, .jp and .ru currently have only classic WHOIS, and each one uses its own format and publishes different fields; .de, for example, does not publish the registration date. This page only parses the common fields, so see the raw WHOIS reply below the results for the full text. A few TLDs (.vn, for example) have no public lookup service and show “Not supported”.

The registry manages a whole TLD; .com, for example, is managed by Verisign. The registrar is the company that sells you the domain. The registry for .com and .net stores only dates, status and name servers, while contacts are held by the registrar, so both are queried here. Dates and status are taken from the registry. The expiry time the registrar keeps itself can differ by a few hours up to a day, and the raw data from both sides is shown below the results.

Yes. If you enter a URL such as https://www.example.com/page, the domain is extracted automatically. If you enter a subdomain such as blog.example.com, the lookup is for the example.com it belongs to, because registration data is only recorded at the level that can be registered. Internationalized domain names, Chinese ones for example, are first converted to the xn-- encoding before the lookup, and the result shows both forms.

Every lookup is made by this site’s server, which asks the registry and registrar. The result for a domain is kept in the server’s memory for up to 1 hour (10 minutes if no record was found), so name servers that were just changed may take a while to show up. The lookup API writes no access log and does not store the domains you look up; the domain after the # in the page address stays in your browser and is not sent to the server. If you look up too often, you are asked to try again later.

Domain age is counted from the registration date recorded by the registry up to today. If a domain expires, is deleted and is registered again by someone else, the registration date restarts from the new registration. It is also common to register a domain and build the site much later, so domain age is not the same as when the site went live, nor as when a search engine first indexed it.