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2. Domain name - Wikipedia

   en.wikipedia.org/wiki/Domain_name

   An annotated example of a domain name. In the Internet, a domain name is a string that identifies a realm of administrative autonomy, authority or control. Domain names are often used to identify services provided through the Internet, such as websites, email services and more. Domain names are used in various networking contexts and for ...

3. List of Internet top-level domains - Wikipedia

   en.wikipedia.org/wiki/List_of_Internet_top-level...

   This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]

4. Domain Name System - Wikipedia

   en.wikipedia.org/wiki/Domain_Name_System

   The domain name space consists of a tree data structure. Each node or leaf in the tree has a label and zero or more resource records (RR), which hold information associated with the domain name. The domain name itself consists of the label, concatenated with the name of its parent node on the right, separated by a dot. [23]: §3.1

5. Generic top-level domain - Wikipedia

   en.wikipedia.org/wiki/Generic_top-level_domain

   Generic top-level domains (gTLDs) are one of the categories of top-level domains (TLDs) maintained by the Internet Assigned Numbers Authority (IANA) for use in the Domain Name System of the Internet. A top-level domain is the last level of every fully qualified domain name. They are called generic for historical reasons; initially, they were ...

6. example.com - Wikipedia

   en.wikipedia.org/wiki/Example.com

   The domain names example.com, example.net, example.org, and example.edu are second-level domain names in the Domain Name System of the Internet.They are reserved by the Internet Assigned Numbers Authority (IANA) at the direction of the Internet Engineering Task Force (IETF) as special-use domain names for documentation purposes.

7. Top-level domain - Wikipedia

   en.wikipedia.org/wiki/Top-level_domain

   For example, in the domain name www.example.com, the top-level domain is .com. Responsibility for management of most top-level domains is delegated to specific organizations by the ICANN , an Internet multi-stakeholder community, which operates the Internet Assigned Numbers Authority (IANA), and is in charge of maintaining the DNS root zone .

8. Subdomain - Wikipedia

   en.wikipedia.org/wiki/Subdomain

   For example, take the English Wikipedia domain en.wikipedia.org. The en is a subdomain of wikipedia.org. Although wikipedia.org is usually considered to be the domain name, wikipedia is actually a sub-domain of the org TLD (top level domain). Any fully qualified domain name can be a host or a subdomain. A domain name that does not include any ...

9. .example - Wikipedia

   en.wikipedia.org/wiki/.example

   In 1999, the Internet Engineering Task Force reserved the DNS labels example, invalid, localhost, and test so that they may not be installed into the root zone of the Domain Name System. [1] The reason for reservation of these top-level domain names is to reduce the likelihood of conflict and confusion.