IsFQDN
Indicates if a Domain name is fully-qualified, but not a top-level domain name.
function IsFQDN(const S: String): Boolean;
Unit
Parameters
const S: String
Domain name to be examined.
Return Value
Boolean - True when a fully-qualified Domain name.
Description
IsFQDN is a Boolean function that indicates if the value in S represents a fully-qualified Domain name. IsFQDN returns True when the value in S is a valid Host name, and the value is a Domain name but not a top-level domain name.