The Internet Corporation for Assigned Names and Numbers is a global multistakeholder group and nonprofit organization head-quartered in the United States responsible for coordinating the maintenance and procedures of several databases related to the namespaces and numerical spaces of the Internet, ensuring the Internet's stable and secure operation. ICANN performs the actual technical maintenance work of the Central Internet Address pools and DNS root zone registries pursuant to the Internet Assigned Numbers Authority (IANA) function contract. The contract regarding the IANA stewardship functions between ICANN and the National Telecommunications and Information Administration (NTIA) of the United States Department of Commerce ended on October 1, 2016, formally transitioning the functions to the global multistakeholder community.
A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last non empty label of a fully qualified domain name. 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.
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 application-specific naming and addressing purposes. In general, a domain name identifies a network domain or an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, or a server computer.
A domain name registry is a database of all domain names and the associated registrant information in the top level domains of the Domain Name System (DNS) of the Internet that enables third party entities to request administrative control of a domain name. Most registries operate on the top-level and second-level of the DNS.
An internationalized domain name (IDN) is an Internet domain name that contains at least one label displayed in software applications, in whole or in part, in non-Latin script or alphabet or in the Latin alphabet-based characters with diacritics or ligatures. These writing systems are encoded by computers in multibyte Unicode. Internationalized domain names are stored in the Domain Name System (DNS) as ASCII strings using Punycode transcription.
.xxx is a sponsored top-level domain (sTLD) intended as a voluntary option for pornographic sites on the Internet. The sponsoring organization is the International Foundation for Online Responsibility (IFFOR). The registry is operated by ICM Registry LLC. The ICANN Board voted to approve the sTLD on 18 March 2011. It went into operation on 15 April 2011.
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 contrasted with country-specific TLDs in RFC 920.
A sponsored top-level domain (sTLD) is 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, alongside country-code top-level domains (ccTLD) and generic top-level domains (gTLD).
.web is a proposed top-level domain (TLD) that was created and assigned by an auction process to several bidding companies. It was awarded to Nu Dot Co LLC, which is primarily funded by Verisign.
A geographic top-level domain is any of an unofficial group of top-level domains in the Domain Name System of the Internet using the name of or invoking an association with a geographical, geopolitical, ethnic, linguistic or cultural community. The IANA does not recognize these domains as their own group within the Root Zone Database, rather classifying them as generic top-level domains.
The .quebec domain is a new GeoTLD and Community Priority Application that was proposed to ICANN's New gTLD Program by PointQuébec, a non-profit organisation. The organisation aims to improve the businesses, culture, tourism, and online identity of Quebec and the Canadians through the .quebec TLD. According to the PointQuébec organisation, .quebec will allow all Quebecers to register their domain names under .quebec.
.music is a community-based top-level domain name (TLD) operated for the benefit of the global music community. It was one of the most highly contested new gTLDs, with eight applicants in contention.
An internationalized country code top-level domain is a top-level domain in the Domain Name System (DNS) of the Internet. IDN ccTLDs are specially encoded domain names that are displayed in an end user application, such as a web browser, in their language-native script or alphabet, such as the Arabic alphabet, or a non-alphabetic writing system, such as Chinese characters. IDN ccTLDs are an application of the internationalized domain name system to top-level Internet domains assigned to countries, or independent geographic regions.
DotConnectAfrica Trust (DCA) is an independent non-profit, non-partisan organization founded in 2006. The organization was incorporated in Mauritius with its main charitable objectives to: (a) for the advancement of education in information technology to the African society and access to internet resources; and (b) in connection with (a) to provide the African society with a continental Internet domain name by sponsoring, establishing, and operating a new Top Level Domain (TLD) ".africa" for purposes of branding Africa on the Internet.
.wiki is a top-level domain name. Its purpose is to denote websites that are wikis. It was proposed in ICANN's New generic top-level domain (gTLD) Program, and became available to the general public on May 26, 2014. Top Level Design is the domain name registry for the string.
.college is a generic-top-level domain (gTLD) used in the domain name system of the Internet. It was delegated to the Root Zone of the DNS on 10 April 2014, completing the successful application for the string. The .college back-end registry operations are provided by CentralNic. Unlike .edu, .college is open for registration to the general public.
.global is a generic top-level domain (gTLD) and was delegated to the DNS root zone on June 6, 2014. The application for the new top-level domain was approved on April 17, 2014, and .global was made available to the general public on September 9, 2014.
.top is a generic top-level domain, officially delegated in ICANN's New gTLD Program on August 4, 2014.
.cloud is a generic top-level domain (gTLD) delegated by ICANN. It is managed by the Italian company Aruba PEC SpA, a wholly owned subsidiary of the same Aruba S.p.A., one of the largest distributors of Hostings and Providers in Europe.
