Domain Registration Policy

III. Syntax

12. The domain name must contain a string of minimum two characters and can contain maximum sixty-three characters.
13. No characters other than a combination of the following may be included in a domain name registration:
- letters "a" through "z". The domain names are not case sensitive;
- the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and/or 9;
- the hyphen character "-". Hyphen is not allowed as the beginning or ending character of a domain name.