special-use domain names

Names reserved for technical uses, not registered or looked up in the public DNS (glossary)public DNS resolver A DNS resolver open for anyone on the internet to use. Full definition of public DNS resolver like normal domains. Examples are .local for devices finding each other on a local network, home.arpa for home networks, .onion (glossary).onion The reserved ending for Tor network services, kept outside the DNS. Full definition of .onion for the Tor network, .alt (glossary).alt A reserved ending for names used outside the DNS. Full definition of .alt for naming systems outside the DNS (glossary)DNS Domain Name System The internet's directory that links domain names to computer addresses. Full definition of DNS, and .test. ICANN (glossary)ICANN Internet Corporation for Assigned Names and Numbers The nonprofit that coordinates the global DNS and gTLD policy. Full definition of ICANN reserved .internal for private networks by a separate decision.