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  2. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    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]

  3. WHOIS - Wikipedia

    en.wikipedia.org/wiki/WHOIS

    A Domain Availability Check (DCHK) Registry Type for the Internet Registry Information Service (IRIS). IETF. doi: 10.17487/RFC5144. RFC 5144. Note: The IETF CRISP working group is not to be confused with the Number Resource Organization's (NRO) Team of the same name "Consolidated RIR IANA Stewardship Proposal Team" (CRISP Team).

  4. Country code top-level domain - Wikipedia

    en.wikipedia.org/wiki/Country_code_top-level_domain

    An internationalized country code top-level domain (IDN ccTLD) is a top-level domain with a specially encoded domain name that is displayed in an end user application, such as a web browser, in its native language script or a non-alphabetic writing system, such as Latin script (.us, .uk and .br), Indic script (. भारत) and Korean script (.

  5. Public Suffix List - Wikipedia

    en.wikipedia.org/wiki/Public_Suffix_List

    The Public Suffix List (PSL) is a community-maintained list of rules that describe the internet domain name suffixes under which independent organisations can register their own sites. Entries on the list are referred to as effective top-level domains ( eTLDs ), [ 1 ] and contain commonly used suffixes like com , net and co.uk , as well as ...

  6. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    The domain name space consists of a tree data structure. Each node or leaf in the tree has a label and zero or more resource records (RR), which hold information associated with the domain name. The domain name itself consists of the label, concatenated with the name of its parent node on the right, separated by a dot. [23]: §3.1

  7. Reverse DNS lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_DNS_lookup

    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]

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