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WHOIS domain lookup

WHOIS verification code
In order to protect our customers from any kind of fraudulent activity, please enter the CAPTCHA code you see in the box below to retrieve the WHOIS information for your requested domain:

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FAQ – Who owns a domain?

With the WHOIS Lookup service, you can view some information about any registered domain name. The WHOIS Information is retrieved from a standardized informational source, the so called WHOIS database. This service may help you to check if a domain is still available for registration or not.
With the 1&1 IONOS Whois Service, you will get information about the current registrant of a particular domain. We offer two versions of the Whois Lookup, which differ in terms of the level of detail provided by the service. With the basic version, included on this page, you get the following Whois information:

  • Domain Name

Furthermore, we are offering you the option to request the complete Whois data for a specific domain under In addition to the information above, you will find the following data:

  • Registry Domain ID
  • Registrar
  • Registrar URL
  • Creation Date
  • Registrar Registration Expiration Date
  • Registrar Abuse Contact Information (Email, Phone Number)
  • Domain Status
  • State
  • Country
  • Registrant Organization
The WHOIS Lookup can confirm if a domain has been registered or not, this may also provide information such as the Registrar and Registry information as well as the domain status, the created, expiry and updated dates and nameservers for any given domain.
Due to GDPR no personal can be displayed any longer. Furthermore, some domain owners use private domain registration where the personal data is kept confidential, hence these information cannot be accessed using the WHOIS Lookup.
The Domaincheck helps to identify whether or not a particular domain name is available to register. The WHOIS Lookup gives you access to further limited information regarding a registered domain. Should your requested domain name still be available, you can use both the WHOIS Service, as well as the Domaincheck in order to easily register your desired domain name with 1&1 IONOS. Furthermore, we recommend suitable domain alternatives in case a particular domain name is registered already. Regardless of whether you use our WHOIS Lookup or Domaincheck, our main goal is to offer you the best support possible on your way to your desired domain name.
Due to the GDPR we will no longer publish your personal data to the WHOIS database. All personal information is hidden and cannot be accessed and we assure you that your data is safe with us.
Yes, there is .com domain WHOIS support. Just like with other domain extensions, you can look up who owns a .com domain with WHOIS or whether certain .com domains are available. However, it should be noted that the information available during this .com domain lookup will depend on where the domain is registered; the WHOIS database is not an independent venture, but deals with multiple registrars that contribute information. These registrars manage different domain extension categories. For example, domain extensions are broken down into several categories: generic top-level domains (gTLD), new top-level domains (nTLD), and country code top-level domains (ccTLD). The domain extension .com (which stands for commercial) is a gTLD domain and is the most common gTLD, others include .org and .net. gTLDs are international domains and the information on these domains is handled by the Internet Corporation for Assigned Names and Numbers (ICANN). However, due to GDPR only a limited amount of information will be made available in the .com domain WHOIS lookup search results.
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