Example image of eyePlorer eyePlorer map for 'Domain Name System': Internet Private network Domain name Hostname IP address Telephone directory Example.com Hyperlink World Wide Web IPv4 IPv6 E-mail address Uniform Resource Locator Name server E-mail Message transfer agent Keyword Internet Protocol Suite Protocol (computing) Internet Engineering Task Force IP ARPANET SRI International Hosts file Jon Postel Paul Mockapetris Request for Comments University of California, Berkeley Unix BIND Digital Equipment Corporation Paul Vixie Porting Windows NT Comparison of DNS server software Tree (data structure) DNS root zone DNS zone Top-level domain Subdomain Octet (computing) Domain name registry Client-server Distributed database Root nameserver Circular dependency Bootstrapping (computing) Time to live Email client Web browser