Are there restrictions over the structure of a domain name?
Domain names must consist only of letters (a-z) and numbers (0-9) - they may also contain the hyphen (-) symbol but may NOT contain special characters like the "and" symbol (&) or exclamation mark (!).
Domain names may not contain spaces or start or end with a hypen (-).
Domain names cannot be more than 63 characters (excluding the .com, .co.uk domain extension.
