A special-use domain name is a domain name that is defined and reserved in the hierarchy of the Domain Name System of the Internet for special purposes...

a generic top-level domain. A set of domain names is reserved by the Internet Engineering Task Force as special-use domain names. The practice originated...

Internet Engineering Task Force (IETF) as special-use domain names for documentation purposes. The domain names are used widely in books, tutorials, sample network...

Internet, a domain name is a string that identifies a realm of administrative autonomy, authority, or control. Domain names are often used to identify...

The Domain Name System (DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources...

internationalized domain names (IDN) DNSSEC: presence of DS records for Domain Name System Security Extensions ICANN/IANA has created some special-use domain names which...

The domain name .local is a special-use domain name reserved by the Internet Engineering Task Force (IETF) so that it may not be installed as a top-level...

localhost The name may also be resolved by Domain Name System (DNS) servers, but there are special considerations governing the use of this name: An IPv4 or...

and the United Nations (UN) use the full state name the Russian Federation for Russia. The country code top-level domain .sj has not been implemented...

The domain name arpa is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet. It is used predominantly for the management of technical...

The Domain Name System Security Extensions (DNSSEC) is a suite of extension specifications by the Internet Engineering Task Force (IETF) for securing...

System and may not even participate in the Internet, but may use a similar domain name hierarchy. Historically the best known large networks in this...

A Domain Name System blocklist, Domain Name System-based blackhole list, Domain Name System blacklist (DNSBL) or real-time blackhole list (RBL) is a service...

.onion is a special-use top-level domain name designating an anonymous onion service, which was formerly known as a "hidden service", reachable via the...

names should be between 2 and 63 characters. Although the Albanian language has a number of special characters, the registry has not enabled the use of...

Special use airspace (SUA) is a type of special airspaces in the United States designated for operations of a nature such that limitations may be imposed...

dig is a network administration command-line tool for querying the Domain Name System (DNS). dig is useful for network troubleshooting and for educational...

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...

The name internal is reserved by ICANN as a domain name for private application use that may not be installed as a top-level domain in the Domain Name System...

"intellectual commons", and the "information commons". Although the term domain did not come into use until the mid-18th century, the concept can be traced back to...

A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country, sovereign state, or dependent territory...

bodies such as the DNS root zone or the IANA Special-Use Domain Names registry. Unlike the Ethereum Name Service (ENS), which operates as a decentralized...

DNS names may contain the underscore. Systems such as DomainKeys and service records use the underscore as a means to assure that their special character...

internationalized domain names (IDNs). This representation is used when registering domains containing special characters. The ASCII representation starts with the...

owner. Eminent domain, the right of a government to appropriate another person's property for public use Private domain / Public domain, places defined...

3166-1 alpha-2 codes are used in the following standards: Starting in 1985, ISO 3166-1 alpha-2 codes have been used in the Domain Name System as country code...

Updated by RFC 6761. S. Cheshire; M. Krochmal (February 2013). Special-Use Domain Names. Internet Engineering Task Force. doi:10.17487/RFC6761. ISSN 2070-1721...

IP address from a domain name. The process of reverse resolving of an IP address uses PTR records. rDNS involves searching domain name registry and registrar...

domain (ccTLD) for Côte d'Ivoire. In most situations, specific registrations are done using a second level domain name. Côte d'Ivoire also makes use of...

typically use .hk, .mo, and .tw, respectively, despite the availability of corresponding second-level domains under .cn for those regions. Domain names can...