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Domain Name Rules


Below is a list of rules to consider when choosing your domain name.

  • Domain name length

    - legal domain name lengths are between 2 characters and 57 characters.
    • Domain name cannot contain any letters of hyphens in 2 character domain names

      This error message is returned if your domain name was only 2 characters long and it contained either a hyphen or a letter, this is because 2 character domain names are only allowed to contain numbers.
    • Domain names cannot begin or end in a hyphen or contain double hyphens

      A domain name can contain hyphens, however the hyphens cannot be neighbours (ie "--") and they also cannot begin the domain name or end it, ie "-domain-checker-plus.xxx" is illegal as it begins with a hyphen.
    • Domain names must only contain alphanumerical characters and hyphens Domain names must only consist of numbers, letter and hyphens - this means that no spaces, periods, commas or any other kind of punctuation is allowed. This is common when people begin the domain name with "www." - this is not part of the domain name and should not be used.
    • Cannot connect to [server name]

      If you recieve this message then the whois server that I am trying to connect to in order to perform your query is either refusing my network connection or for some other reason I am unable to connect to it, the best course of action when this occurs is to simply try again later.
    • No top level domain selected

      This means that you failed to select a top level domain for your domain name, for example `co.uk', `com', `net' etc.
    • Top level domain not supported

      This error message means that whichever top level domain extension you chose is not supported by this scripts configuration, in other words, I do not have the information required to search for this top level domain.