The DNS root zone is the top-level DNS zone in the hierarchical namespace of the Domain Name System (DNS) of the Internet.
Before October 1, 2016, the root zone had been overseen by the Internet Corporation for Assigned Names and Numbers (ICANN) which delegates the management to a subsidiary acting as the Internet Assigned Numbers Authority (IANA).[1] Distribution services are provided by Verisign. Prior to this, ICANN performed management responsibility under oversight of the National Telecommunications and Information Administration (NTIA), an agency of the United States Department of Commerce.[2] Oversight responsibility transitioned to the global stakeholder community represented within ICANN's governance structures.
A combination of limits in the DNS definition and in certain protocols, namely the practical size of unfragmented User Datagram Protocol[2] (UDP) packets, resulted in a practical maximum of 13 root name server addresses that can be accommodated in DNS name query responses. However the root zone is serviced by several hundred servers at over 130 locations in many countries.[3][4]
^"Stewardship of IANA Functions Transitions to Global Internet Community as Contract with U.S. Government Ends". October 1, 2016. Retrieved December 25, 2017.
^ abJerry Brito (March 5, 2011). "ICANN vs. the World". Time.
^"There are not 13 root servers". www.icann.org. Retrieved January 18, 2018.
^"DNS root servers in the world « stupid.domain.name". stupid.domain.name. Archived from the original on February 11, 2021. Retrieved January 18, 2018.
A root name server is a name server for the rootzone of the Domain Name System (DNS) of the Internet. It directly answers requests for records in the...
A DNSzone is a specific portion of the DNS namespace in the Domain Name System (DNS), which a specific organization or administrator manages. A DNS zone...
public keys for the DNSrootzone which is the trusted third party. Domain owners generate their own keys, and upload them using their DNS control panel at...
Rootzone may refer to: roots, of plants rhizosphere, of plants DNSrootzone, the start of the Domain Name System This disambiguation page lists articles...
A Domain Name System (DNS) zone file is a text file that describes a DNSzone. A DNSzone is a subset, often a single domain, of the hierarchical domain...
authoritative name-servers operating, every DNS query must start with recursive queries at the rootzone of the Domain Name System and each user system...
sub-divides into zones beginning at the rootzone. A DNSzone may consist of as many domains and subdomains as the zone manager chooses. DNS can also be partitioned...
hierarchy of the Domain Name System (DNS). It specifies all domain levels, including the top-level domain and the rootzone. A fully qualified domain name is...
Open Root Server Network (ORSN) was a network of Domain Name System root nameservers for the Internet. ORSN DNSrootzone information was kept in synchronization...
level domains not found in the official DNSrootzone temporary unavailability of the ISP's name server Public DNS resolver operators often cite increased...
A wildcard DNS record is a record in a DNSzone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a...
public example is the signing of the DNSrootzone for DNSSEC. In public-key cryptography and computer security, a root-key ceremony is a procedure for generating...
authoritative DNS server by CZ.NIC. Knot DNS aims to be a fast, resilient DNS server usable for infrastructure (root and TLD) and DNS hosting services. Knot DNS supports...
names and addresses, including changes to authority over the Internet DNSrootzone, which ultimately, and controversially, increased U.S. control. On October...
language scripts. In May 2010, the first IDN ccTLDs were installed in the DNSrootzone. Internationalizing Domain Names in Applications (IDNA) is a mechanism...
needed] In 1997, PGMedia filed an antitrust suit against NSI citing the DNSrootzone as an essential facility, and the US National Science Foundation (NSF)...
DNS tree by administrating the data in the root nameservers. IANA also operates the int registry for intergovernmental organizations, the arpa zone for...
This list of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS). It also contains pseudo-RRs...
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