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.DK is the official country code Top-Level-Domain (ccTLD) of Denmark. A .DK domain name can be used and registered by anyone or any corporation

Introduced 1987
Country Denmark
Registry Hostmaster DK
IDN Capable Yes
Webpage Register .DK







Dispute Policy



1api GmbH



7 times a day (9am,11am,1pm,3pm,5pm,7pm,9pm)

Min. Characters


Max. Characters


Character Set
  • Letters and numbers
  • Hyphens ("-"), however not at the beginning or directly in front of the TLD
  • IDN: allowed
  • Registrant Contacts: Required: 1 / Maximum: 1
  • Admin Contacts: Required: 1 / Maximum: 1
  • Tech Contacts: Required: 0 / Maximum: 1
  • Billing Contacts: Required: 0 / Maximum: 1

{{{Possible Extensions}}}

IDN capable


Restore capable


Handle Updates

Supported (manual)

Registration System


Allowed number of NS

2 to 7

Registry Nameservercheck


Host IP-Addresses Type


Hosts managed as


Root Nameserver Update


SEC DNS Interface

not available



Transfer Periods


Transfer Authcode required


Transfer Real-Time


Transfer ACK by


Transfer NACK by


Transfer Lock


Owner Change by



{{{Possible Extensions}}}

Registration Periods

1-10 years

Add Grace Period

0 days

Accounting Period

-8 days

Finalization Period

-3 days

Failure Period

-3 days

Payment Period

-61 days

Deletion Restorable Period

30 days

Deletion Hold Period

0 days

Explicit Renewals


Renewal Periods

1-9 years


Domain Registration

Domains can be registered with the API AddDomain command.

command = AddDomain
domain  = (DOMAIN)


ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 = (CONTACT)
billingcontact0 = (CONTACT)
nameserver0 = (NAMESERVER)
nameserver1 = (NAMESERVER)

X-REGISTRANT-VATID = VatID of the company (only for companies)
X-ADMIN-VATID = VatID of the company  (only for companies)


auth = <TEXT> | <NULL>
transferlock = 0 | 1 | <NULL>
subuser = <TEXT> | <NULL>


The transferlock and authcode are only supported for USERTRANSFERS inside HEXONET. The registry itself does not support both!

Domain Transfer

The transfer has to be initiated by the gaining registrar and can be requested with the API TransferDomain command.

command = TransferDomain
domain = (DOMAIN)


auth = <TEXT>
period = <PERIOD>

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is a Deletion Restorable Period of 30 days and a following Deletion Hold Period of 0 days.

command = DeleteDomain
domain = (DOMAIN)

If a .DK domain is deleted, HEXONET will push it to the registry, the registrant will be the future billing contact. So this is not a real deletion as only the registrant is able to delete the domain name at the registry!

Restore Domain

Restore of .DK domains can be realized by using the TransferDomain command. An authcode is not required.


A Change of Registrant can only be directly processed by the registry. It can be done by the current domain owner by logging into the self-service portal on this link: .DK Self-service.

TLD specific


If the registration was successful, the owner receives an email from HostmasterDK with a login and a Pincode. Example of a confirmation email:


On xx.xx.2008 we reserved the above domain name for you.
User ID: xxxxxx-DK   Pincode: xxxx

Both User ID and '''Pincode''' are needed for the activation and further modifications of the domain.

Please note that you have to state the VAT-ID during the registration if the owner/admin contact is a organization (company). The VAT-ID is required and can be specified on creating or modifying the contact handle of the registrant / admin contact. Further information about creating contact handles can be found here: AddContact


command = AddDomain
domain =
X-REGISTRANT-VATID = VatID of the company
X-ADMIN-VATID = VatID of the company

No refund in case of failed registrations

If the registration of a .DK domain fails for some reason (e.g. no activation within 3 months, or wrong contact data for the registrant), the registry will give NO refund of the registration fee at all.

Registrations by using an existing User ID

Customers with an existing DK-HOSTMASTER account can provide their User ID in order to place newly registered domains on their existing account. This only applies to .DK domains.


command = AddDomain
domain =

Domain activation

To activate your registered .DK domain, please proceed as follows:

1. Visit
2. Log in with the Login and Pincode you received by mail.
3. You will get to your "domain name list", where your domain name(s), status, and expiration date is listed.
4. Click on your domain name.
5. You will see a site called "domain name information", where the contact and nameserver information to your domain is listed.
6. On the right, you will find a Danish link: "aktiver domænenavnet". Click it.
7. You will have to re-enter your Login and Pincode.
8. WARNING! The following steps are only available in Danish! Don't click on the English link, it will guide you to the start page!

The first page again shows your owner contact data, which you have to confirm. After this confirmation, you will get a red warning message that your contact data will be provided in the official DK-WHOIS. The next page shows you 2 text areas with the General Terms and Agreements and the Policies of the .DK domain names. You have to scroll down and "read" those text areas. Then you have to click the second choose button below the text areas, which says that you have read and understood the Policies. Then you can click to the next page. The next (and last) page shows your domain name again and a checkbox. Please check the checkbox and click to the next step. Now your domain name is activated. You will receive another Danish email, confirming the activation of your domain.

In order to obtain the user id which is required to login at DKHostmaster This id can be found by using the objectlog at "API Library" --> "Object Log". The ID is part of the "CREATE SUCCESSFUL" entry.

Deletion of not activated domains

The owner of a .DK domain can activate the domain within 3 months after registration. If he does not activate the domain within this timeframe, the registry will delete the domain without further warning. Please note that in such a case no refund of the registration fee is possible.

Nameserver Validation

Nameservers can only be used if are registered at HostmasterDK and the domain is correctly activated by the domain owner. 
It have to be registered and approved by DK hostmaster.

Approval of the nameserver can be requested here:


The Transfer procedure for .DK domains is semi-automated. To transfer a .DK domain into your account, please initiate the transfer in your account using TransferDomain or the respective transfer function in the Control Panel. As soon as this has been done, we receive a message and will manually import the domain into account.



Restore Process

To restore a domain as a RegistrarOC customer, you simply have to execute the RestoreDomain command. HEXONET directly forwards the restore request to the registry, which performs the restore in short time. As soon as the restore has been completed by the registry, the domain will get assigned to your account with the original domain data.

Please do not initiate a restore directly at the registry (e.g. using the registrar webinterface). All restore operations must be performed through our system.