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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 identified with a country code.
In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. [1]
This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]
WHOIS (pronounced as the phrase "who is") is a query and response protocol that is used for querying databases that store an Internet resource's registered users or ...
WHOIS++ was devised as an extension to the pre-existing WHOIS system. [2] WHOIS was an early networked directory service, originally maintained by SRI International for the Defense Data Network . The WHOIS protocol is still widely used to allow domain ownership records in the Internet to be easily queried.
.is (dot is) is the top-level domain for Iceland.The country code is derived from the first two letters of Ísland, which is the Icelandic word for Iceland. Registration of .is domains is open to all people and companies without any special restriction.
The .io domain was delegated by the Internet Assigned Numbers Authority (IANA) to British entrepreneur Paul Kane in 1997 together with the ccTLDs .ac (Ascension Island), .sh (St Helena), and .tm (Turkmenistan).
Domain privacy (often called Whois privacy) is a service offered by a number of domain name registrars. [1] A user buys privacy from the company, who in turn replaces the user's information in the WHOIS with the information of a forwarding service (for email and sometimes postal mail, it is done by a proxy server ).