Fully qualified domain name
From Wiki @ Karl Jones dot com
A fully qualified domain name (FQDN), sometimes also referred to as an absolute domain name, is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS).
It specifies all domain levels, including the top-level domain and the root zone.
A fully qualified domain name is distinguished by its lack of ambiguity: it can be interpreted only in one way.
The DNS root domain is unnamed, which is expressed by the empty label, resulting in a fully qualified domain name ending with the dot character.
The need for fully qualified domain names first arose out of a requirement for uniformity as the Internet was quickly growing in size in the 1980s.
External Links
- Fully qualified domain name @ Wikipedia
