What is a domain name?

An area name is an ID string that characterizes a domain of authoritative independence, authority, or control inside the Internet. Area names are utilized in different systems administration settings and for application-explicit naming and tending to purposes. As a general rule, a space name distinguishes an organization area, or it addresses an Internet Protocol (IP) asset, for example, a PC used to get to the Internet, a worker PC facilitating a site, or the actual site or some other help imparted by means of the Internet. In 2017, 330.6 million space names had been registered.

Area names are framed by the guidelines and methodology of the Domain Name System (DNS). Any name enrolled in the DNS is a space name. Space names are coordinated in subordinate levels (subdomains) of the DNS root area, which is anonymous. The primary level arrangement of area names is the high-level areas (TLDs), including the nonexclusive high-level spaces (gTLDs, for example, the conspicuous spaces com, data, net and organization, and the nation code high-level spaces (ccTLDs). Beneath these high-level areas in the DNS chain of command are the second-level and third-level space names that are normally open for reservation by end-clients who wish to associate neighborhood to the Internet, make other freely available Internet assets, or run sites.

The enrollment of these space names is generally regulated by area name enlistment centers that offer their administrations to general society.

A completely qualified area name (FQDN) is a space name that is totally determined with all marks in the progressive system of the DNS, having no parts precluded. Customarily an FQDN closes in a dab to mean the highest point of the DNS tree. Labels in the Domain Name System are case-inhumane, and may consequently be written in any ideal capitalization technique, however, most normally space names are written in lowercase in specialized contexts.