If you’re looking to register a domain, it’s not enough to simply record your own contact details on the Whois database: you also need to name an ad­min­is­tra­tor and a tech­ni­cian. These are referred to as Admin-C and Tech-C. Ad­di­tion­al­ly, if a name server is delegated for the reg­is­tered domain, then the re­spec­tive con­tract­ing authority (the registry) also requires the contact in­for­ma­tion for a zone ad­min­is­tra­tor (known as Zone-C). We’ll take you through the tasks that these different roles have as well as their rights and re­spon­si­bil­i­ties.

Domain Name Reg­is­tra­tion
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Domain owner

In the eyes of the registry, the domain holder is seen as a contract partner in domain reg­is­tra­tion. If you decide to register a web address, then you receive ownership of the domain and so hold the rights to this material. But a domain owner doesn’t nec­es­sar­i­ly have to be an actual person. If you want to register a web address for your business, for example, then you can list the company name as the domain holder. Shared ownership is also possible. But if you do choose to register your domain under your business rather than a person, the name listed must be the company’s full legal title. Other re­quire­ments in addition to the domain owner’s name include a reg­is­tered address, a telephone number, and an e-mail address. Simply giving a mailbox won’t suffice.

Admin-C

After the domain owner has been listed, you’ll need to name a real person as the ad­min­is­tra­tive point of contact for the domain. This Admin-C is appointed by the domain owner and receives full access rights to the domain. This means that the admin is entitled to control of the domain operation and granted the cor­re­spond­ing re­spon­si­bil­i­ty to decide matters without needing per­mis­sion from the domain owner. In cases of private domain reg­is­tra­tion, it’s quite typical for the domain owner to also take on the role of Admin-C as well. But other companies may choose to leave this task to a spe­cial­ized service operator, allowing an expert to handle their domain ad­min­is­tra­tion. The required in­for­ma­tion for reg­is­ter­ing an Admin-C on the Whois database is exactly the same as is needed for reg­is­tra­tion of a domain owner: a reg­is­tered address, a contact number, and an e-mail address.

Domain Checker
  • .com
  • .info
  • .net
  • .online
  • .org
  • .site
  • .com
  • .info
  • .net
  • .online
  • .org
  • .site

Changing the Admin-C

As the domain holder, you reserve the right to change the Admin-C for your domain. To make this change, you simply have to contact the internet service provider with whom you reg­is­tered the domain. They’ll usually have a form available for this, which you can simply fill out. In some cases, charges for pro­cess­ing this in­for­ma­tion may apply. In cases of an Admin-C change, it’s only the ad­min­is­tra­tive contact that needs to be altered and rewritten. The ownership of the domain can be left unchanged.

Liability

In general, since the Admin-C has full access rights and no re­stric­tions, he or she is seen as acting on behalf of the domain owner. As a result, the ad­min­is­tra­tive contact person is often held ac­count­able for rights vi­o­la­tions, even those as­so­ci­at­ed to the domain itself. The question of the extent to which the Admin-C can be liable for in­fringe­ments of license in the reg­is­tra­tion of a domain name and the content of a website is a difficult topic that has been debated many times in court – with differing outcomes.

Tip

Want to find out who owns a par­tic­u­lar domain? Use our free IONOS WHOIS domain lookup.

Tech-C and Zone-C

The contact for technical queries relating to a domain is known as the technical contact (Tech-C). This role can be a named in­di­vid­ual, but it can also serve as a general term for a group of people (like the IT de­part­ment at a company). Although the Tech-C does need to be de­ter­mined by the domain holder, unlike the Admin-C, this role carries no liability and offers no control over solutions and domain transfers. And the tasks assigned to the Tech-C are often taken on by the internet service provider. Replacing the registrar data, ad­min­is­tra­tive in­for­ma­tion, as well as the technical contact details of a website with that of the internet service provider’s, carries a great advantage; personal in­for­ma­tion remains com­plete­ly anonymous and not only does this provide pro­tec­tion against spam, but it also prevents in­for­ma­tion from being misused by third parties. Benefit from this great function with IONOS’s private domain reg­is­tra­tion.

The role of zone ad­min­is­tra­tor for a domain is referred to as Zone-C. This role involves being re­spon­si­ble for the main­te­nance of the domain name server, and so the Zone-C is contacted for in­for­ma­tion related to a domain’s DNS records. If a domain hasn’t been delegated its own name server, then the internet service provider handles this. The Whois records for the Tech-C and the Zone-C require the same in­for­ma­tion as for the domain owner and the Admin-C: a name (the official legal name if it’s a company name), a postal address as well as a telephone number and an e-mail address.

Note

Thanks to the General Data Pro­tec­tion Reg­u­la­tion which was im­ple­ment­ed in the EU in 2018, there have been changes in some European countries when it comes to contact in­for­ma­tion about domain holders being public. In Germany, for example, .de domains are regulated by DENIC, who have decided to replace Tech-C, Zone-C and Admin-C in­for­ma­tion, instead providing two non-personal email addresses for any queries. There will be no more personal holder data shown in the whois output for data pro­tec­tion reasons.

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