| The domain name is structured as the subdomain of | | | | ICANN, delegates the use of the domain name. An |
| the nameless DNS root domains. The top level | | | | administrative organization, which operates the |
| domain name is called (TLD), which includes the | | | | registry technically services and maintains the TLD |
| generic top level domain (gTLD) like "gov" for | | | | and ICANN. The registry is responsible for maintaining |
| government agencies; "edu" for educational | | | | the database of the domains registered within the |
| institutions; "org" for nonprofit organizations; "mil" for | | | | TLD it maintains. Each registrar, who is authorized to |
| military; "com" for commercial business; and "net" for | | | | assign the names in the corresponding TLD, gives the |
| network organizations; and also the country code | | | | registration information to the registry for maintaining |
| top-level domain (ccTLD). | | | | the records. |
| In the hierarchy of DNS, the second next level | | | | For registering the domain and to maintain the |
| domains and the third level are usually open for the | | | | requisite authority on the new domain name's space |
| reservations by the end users, who wish to connect | | | | created, the registrars have to use many important |
| their local area network to the Internet, or even run | | | | key points of information, which are connected to |
| websites. Usually both these levels of domain names | | | | the domain. These are the administrative contacts; |
| are registered by the domain name registrar. | | | | the technical contact; the billing contact and the name |
| The Individual host computer uses the domain like | | | | server. |
| host names, which is the leaf or end label in the | | | | For delegating it to the user, and maintaining it, the |
| domain name system and does not have any more | | | | registry and the registrars charge an annual fee. Just |
| subordinate domain names. The hostname appears | | | | remember that registration of the domain names |
| like a component in the URL for the internet | | | | with the registrar confers only exclusive rights of |
| resources like websites. | | | | usage and not any legal ownership. |
| Those domain registrars, who are accredited by the | | | | |