Whois lookup

Public information about a domain

Obtain domain data
In an office, surrounded by many colleagues, a young man types on his computer to consult the Whois of Domains
Accredited by ICANN

What is a domain Whois?

The Whois lookup is the database that allows you to query the data of a registered domain. The information displayed is public and, therefore, anyone can access it for free. Each time someone registers a domain, the data they provide will become part of this public database. ICANN (Internet Corporation for Assigned Names and Numbers) is the entity that manages this database and requires that Whois information be accurate so that the registrant can be located for administrative or legal matters.

The information provided by the Whois lookup depends on the NICs of each country and includes: registrar data, technical data of the domain (registration and expiration dates, DNS information, etc.) and information about the owner and technical and administrative contacts.

Consult usage conditions

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.

Boy consults his tablet and computer to search for the data of a domain he wants to register with Whois

How to use the Whois domain search?

Enter the domain name in the search box and select Whois.

The tool will search the Whois public database.

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.

¿Qué piensan nuestros clientes?
What do our customers say?
Atención al cliente
laura
2025-11-02
Me ha encantado. Espero que hagais cursos de IA, sobre todos relacionados con herramientas IA para empresas, o para abogados, economistas. Me gustaria tener el contacto de Miguel Angel Alvarez
SANTIAGO GARCIA
2025-10-30
Muy practico. Repaso desde cero pero tocando todo lo importante
Jose Miguel Casanova
2025-10-30
Muy interesante y un gran apoyo
Luis B.
2025-10-30
Me han atendido muy bien, estoy mu contenta
Lina
2025-10-29
Más de 20 años trabajando con Arsys. Excelente servicio de Atención al Cliente en todo los aspectos. Excelente desempeño de los Web Sites alojados en sus servidores.
Jimmy Diaz
2025-10-25
Después de "pelearme" durante horas con mi web, llame al soporte de Arsys (por la noche) y en minutos lograron ayudarme. No puedo estar más agradecida, me atendió Sergio. Fue mi "Ángel de la Guarda". Mil gracias.
Raquel
2025-10-25
Atención telefónica excepcional. Totalmente recomendable.
juan angel larumbe
2025-10-24
El servicio es Genial, el soporte es en español y va mas allá en tus dudas. Lo recomiendo para la tranquilidad de tus servicios que ofreces a terceros.
Guillermo Guzman
2025-10-23
Conocía algunos aspectos de plesk y hoy he visto mas opciones y posibilidades por las extensiones que incorpora
Antonio
2025-10-23
La atención telefónica, personal, es inmejorable. Da gusto llamar y que alguien te atienda sabiendo lo que dice y te escuche para comprenderte. De diez.
Antonio
2025-10-20
Lo mejor de todo la profesionalidad, competencia y buen trato de la persona que me atendió. Inmejorable
Jaime
2025-10-07
Sus recomendaciones fueron detalladas y los pasos a seguir en la resolución fueron acertados Los recomiendo ampliamente Vivian Francos #seohashtag
Vivian Francos #SeoHashtag Pos
2025-10-04
Buen trabajo
Antonio
2025-09-18
Muy interesante el webinar
Jorge
2025-09-18
todo correcto
Roberto
2025-09-17
Hay muchas empresas que ofrecen dominios y hosting. Arsys de diferencia en el servicio postventa. Te ayudan con todo lo que pueden entiendas o no entiendas del tema. 100% recomendado 🙌🏽
Juan
2025-09-12
Llevo mas de 20 usando Arsys para mi y otras empresas, buenas ofertas servicios y atención ademas de formacion gratuita actualizada. Encantado con ellos.
Rafael Martin Villanueva
2025-09-04
Hace más de veinte años que soy cliente y siempre he sido atendido como el mejor, rápida y efectivamente, en todos los servicios. Por eso no he tenido necesidad ni oportunidad de averiguar si hay en el mercado alguien mejor.
Amadeo Sala Hess
2025-08-28
Son expertos en su sector
Javier P
2025-08-27
Mejor atención imposible. Los productos se manejan muy bien. Gracias, seguiré con vosotros.
patricia lerena
2025-02-21
Mi ISP favorito. Me lo recomendó un amigo y desde que estoy con ellos no me cambio. Los recomiendo por su alta profesionalidad y disponibilidad para resolverte dudas.
Ricardo Ruiz Martínez
2023-09-20

Atención al cliente personalizada

Cerca de ti, siempre

Nos gusta la tecnología, pero sobre todo ayudarte a cumplir los objetivos de tu proyecto IT.

  • Olvídate de las esperas

    Nuestro compromiso es claro: atender tu llamada en menos de 1 minuto. No importa si es de día op de noche estamos de guardia.

  • Obtén respuestas precisas y certeras

    No nos conformamos con respuestas vagas. Y así lo dicen 9 de cada 10 clientes satisfechos con las consultas que nos han realizado.

  • No lo decimos nosotros, sino nuestros clientes

    9 de cada 10 clientes nos recomiendan no solo por nuestros servicios, sino también por nuestro soporte técnico.

Agente de soporte con cascos y un ordenador responde a todas tus consultas sobre nuestros servicios
Más de 25 años de soporte técnico

Contacta con nosotros
Chat con expertos

Respuestas en vivo a tus consultas.

Iniciar chat
941 620 100

24 horas al día, 7 días a la semana.

Llamar ahora

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.

Accredited domain registrar

With over 25 years of experience registering domains and more than 250,000 clients, we have become a benchmark in the sector. In fact, we have been an ICANN-accredited domain registrar for decades (Internet Corporation for Assigned Names and Numbers) and have all the necessary certifications to register the most important domain extensions: .com, .es, .net, .org, .biz, .info, .eus, .cat, .fr, .madrid, .io, .barcelona…

That's why your domains will be completely secure with Arsys. Register your domain and discover all the advantages we offer when you buy your domain in Europe.

mobi esnic .be agent cat tel ICANN verisign biz eu org WebSite info pt eus madrid