Whois lookup

Public information about a domain

Datos del dominio


What is a domain Whois?

It is the data of a registered domain. The information shown is public and therefore, anyone can access it. Every time someone registers a domain, the data they provide becomes part of this public database. It depends on the NICs of each country and it includes: the data of the registrant, technical data about the domain (registration and expiration date, DNS information, etc.) and information about the owner and the technical and administrative contacts.

Consult conditions of use

What information can I check in a domain Whois?

The registration data of a domain that you can find out using a Whois search is as follows:

  • Domain name
  • Registrant name
  • Administrator ID
  • Administrator data (name and email)
  • Technical contact ID
  • URL of the registrant
  • Creation and expiration date of the register
  • Data about the DNS used

Registration bodies require that the registration data of domains, and therefore that shown in the WHOIS, be real and up-to-date. Otherwise, the domain could be suspended.

How to use the Whois domain search?

  • 1 Enter the domain name in the search box and select Whois.
  • 2 The tool will search the Whois public database.
  • 3 It will provide you with detailed information on the registered domain name within seconds.

What is the Whois domain search engine used for?

  • Find out if a domain is available

    The Whois database allows you to know if a domain is available or if it has already been registered by someone else. If no detailed information about the domain you searched for appears, it means that the domain is available. This way, if you wish to have it, you can register that domain and become its owner.

  • Knowing who is the owner of a domain

    Through this service, you can also consult some domain registration data. With this information, you will be able to contact the domain owner to try to obtain or recover it, for example. This method can be very interesting if someone has registered a domain name very similar to yours and therefore traffic is being diverted to a competitor's website.

  • Find out when a domain expires

    Thanks to the detailed information this database provides, you can find out the expiration date of the domain. This information is all the more valuable if you have lost your domain and are interested in recovering it. Consulting the Whois is very useful to protect your project’s trademark and to avoid losing an expired domain. It is important to activate automatic renewals for your corporate domains in order to avoid worrying about expiration dates and to ensure maximum protection for your domain.

How does the Whois domain search work?

  • Whois public database

    When entering the domain name you wish to obtain more detailed information about, the public database will be searched. In this Whois database, public data on registered domains is collected centrally. Depending on the domain extensions, there are different registries with their own databases.

  • Domain detailed information

    The information provided by the search engine must be fully updated by the registrar. As stated in ICANN’s policies, providing real data when registering a domain is necessary in order to always have updated information. In fact, providing false data can lead to the suspension or cancellation of domains.

  • Whois privacy

    The personal information relative to each domain registration provided is stored in the public WHOIS database. If your domain is registered in the European Union, this information is under the protection of the General Data Protection Regulation (GDPR). Therefore, the personal information associated with your domain cannot be displayed, but the server data can. Moreover, our launch registration service enables you to keep your information confidential.

Frequently asked questions about Whois

  • Is the Whois tool free?

    Yes, you can check domain information through the Whois search engine for free. Furthermore, you can use the tool as many times as you need, since there is no limit to the number of searches you can perform.

  • Who is in charge of the Whois database?

    The Internet Corporation for Assigned Names and Numbers (ICANN) has been in charge of everything related to WHOIS searches since 2016. And it does not need the supervision of any country.

  • Can anyone have access to my web domain information?

    All personal information on domains registered in the European Union is protected by the GDPR. Therefore, no one has access to this type of information and your personal data is guaranteed to receive the best protection. Only data from the registrar, administrator etc. are displayed.

  • How can I update my domain’s data?

    You can update the contact information from your Arsys domain administration panel. Keeping your contact information updated is very important in order to comply with ICANN regulations.

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