Anything that ends in a .com, .net, .org, .gov or etc. Generally domain names are usually shorter than longer, but some can be quite long.
Fully Qualified Domain Name
Fully Qualified Domain Name
PQDN is Partially Qualified Domain Name FQDN is Fully Qualified Domain Name.
A DNS (Domain Name Service) server can find an IP address for a computer when the fully qualified domain name is known.
A fully qualified domain name (FQDN), sometimes also referred 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 domain. A fully qualified domain name is distinguished by its unambiguity; it can only be interpreted one way.
DNS
It is called as an FQDN and is read as "FULLY QUALIFIED DOMAIN NAME" , wherein it is in the format:YourComputerName.YourdomainNameand is Unique in a Domain.
255 characters.
A fully qualified domain name (FQDN) is the complete domain name for a specific computer, or host, on the Internet. The FQDN consists of two parts: the hostname and the domain name. Additional info: you may see an FQDN as the following parts: hostname - actual name of the device subdomain - a part of the overall domain domain - usually a company name TLD - what area of the naming convention it appears in so you could have: sales.Midwest.us.Microsoft.com as a complete FQDN, with the name 'sales' as the actual device within the Midwest/us subdomains within the Microsoft domain within the com TLD area.
A Fully Qualified Host Name (FQHN) is a complete domain name that specifies the exact location of a host within the Domain Name System (DNS) hierarchy. It includes both the hostname and the domain name, providing a unique address that specifies the host's position in the DNS tree, such as "www.example.com." An FQHN eliminates any ambiguity by detailing the host's domain as well as its subdomains, ensuring accurate identification across the internet.
The dot in a qualified domain name (QDN) separates different levels of the domain hierarchy, indicating the structure of the domain. Each segment to the left of the dot represents a more specific level, with the rightmost part being the top-level domain (TLD), such as .com or .org. This hierarchical organization helps in efficiently locating and accessing resources on the internet. The dot at the end of a fully qualified domain name denotes the root of the DNS hierarchy, emphasizing its complete and absolute nature.
It's just another way of describing a fully qualified domain name (FQDN) and specifies its precise level in the hierarchy of the DNS. It is complete and absolute and no other domain can replicate it's location. Just as you are unique and cannot be in more than one place at any time there is only one fully qualified domain name for each domain level and it can only reside in a single location. It denotes all domain levels - from the top level domain to the root. This protocol has been a key factor in allowing the Internet to evolve exponentially, and to be scalable and results in instant and irrefutable identification.