What characters can I use in a domain name?

When you register a domain name, you can use the following characters:

  • All Danish letters. This means that you can use æ, ø and å in your domain name.
  • The letters ö, ä, ü and é. 
  • Numbers from 0 to 9. 
  • Hyphen (-). However, a hyphen may not be the first or last character in the domain name.

Please note:

  • Not all internet browsers and e-mail programs can handle domain names with the characters æ, ø, å, ö, ä, ü and é. If you wish to use the domain name for an e-mail address you should therefor avoid these characters. However, numbers and hyphens do not cause any problems.
  • A domain name cannot have two leading alphanumeric characters followed by two hyphens, e.g. a2--x6z.dk.


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