Top Domain Extension A domain name consists of letters and/or numbers. Non-alphanumeric characters are not allowed in a domain name with the sole exception of the - hyphen (or minus sign) character.
We recommend that our clients stick with the first 3 traditional domain extensions: .com, .net, and .org since these are the most widely recognized by internet users. However, because of their newness .biz and .info have many short high-quality names still available for registration.