Domain

A domain is an identification string that defines a realm of administrative autonomy, authority or control within the Internet. Domain names are used in various networking contexts and for application-specific naming and addressing purposes. In general, a domain name identifies a network domain, or it represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet. In 2015, 330.6 million domain names had been registered.

A domain name may be composed of multiple levels of the hierarchy of domain names, with each level offering different degrees of specificity. For example, in the Domain Name System (DNS) hierarchy, www.example.com is more specific than example.com. In this example, www is the subdomain of example.com, and example.com is the domain name.

Domain names are organized in subordinate levels (subdomains) of the DNS root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, info, net, edu, and org, and the country code top-level domains (ccTLDs). Below these top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for

What's an example of domain?

A domain is an identification string that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Any name registered in the DNS is a domain name.

Domain names are used in various networking contexts and for application-specific naming and addressing purposes. In general, a domain name identifies a network domain, or it represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet. In 2015, 330.6 million domain names had been registered.

What are the 4 types of domain?

The four types of domains are generic top-level domains (gTLDs), country code top-level domains (ccTLDs), sponsored top-level domains (sTLDs), and infrastructure top-level domains (iTLDs).

gTLDs are the most common type of domain and include domains such as .com, .net, and .org. ccTLDs are country-specific domains and include domains such as .uk (United Kingdom) and .de (Germany). sTLDs are sponsored domains that are sponsored by a specific organization, such as .edu (education) and .gov (government). iTLDs are infrastructure domains that are used for specific purposes, such as .int (international organizations) and .arpa (address and routing information).

Whats is my domain?

A domain is an identification string that defines a realm of administrative autonomy, authority, or control on the Internet. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Any name registered in the DNS is a domain name.

Domain names are used in various networking contexts and for application-specific naming and addressing purposes. In general, a domain name identifies a network domain, or it represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet. In 2017, 330.6 million domain names had been registered.[1]

A domain name may represent entire collections of such resources or individual instances. Individual Internet host computers use domain names as host identifiers, also called hostnames. The term hostname is also used for the leaf labels in the domain name system, usually without further subordinate domain name space. Hostnames appear as a component in Uniform Resource Locators (URLs) for Internet resources such as web sites (e.g., en.wikipedia.org).

Domain names are also used as simple identification labels to indicate control of a resource. Such examples are the realm identifiers used in the Session Initiation Protocol (SIP), the Domain Keys used to verify DNS domains in e-mail systems, and in many other Uniform Resource Identifiers (URI).

An important function of domain