(Fully Qualified Domain Name) The complete domain name for a specific computer (host) on the Internet. It provides enough information so that it can be converted into a physical IP address. The FQDN consists of host name and domain name. For example, www.computerlanguage.com is the FQDN on the Web for the publisher of this database. The WWW is the host. On the Web, there are millions of hosts named WWW in order to maintain uniformity. COMPUTERLANGUAGE.COM is the domain name, with .COM being the top level domain (TLD) name. See DNS and Internet domain name.