Root Server System

The whole system that answers questions about the root zone (glossary)root zone The top of the DNS, listing every TLD and its name servers. Full definition of root zone, the top of the DNS (glossary)DNS Domain Name System The internet's directory that links domain names to computer addresses. Full definition of DNS. Its 13 named root server (glossary)root server A server that answers for the DNS root zone and points to TLD servers. Full definition of root server identities, lettered A to M, are run by 12 independent organizations. Each identity is served from many anycast (glossary)anycast One server address served from many locations, so users reach the nearest copy. Full definition of anycast copies around the world. ICANN (glossary)ICANN Internet Corporation for Assigned Names and Numbers The nonprofit that coordinates the global DNS and gTLD policy. Full definition of ICANN's Root Server System Advisory Committee (glossary)RSSAC Root Server System Advisory Committee ICANN's advisory committee on the root server system. Full definition of RSSAC advises on how the system works.