What is DNS?
Your DNS or Domain Name Server is the system that allows your Web site to display when users enter a domain in a Web browser. Nameservers are the Internet's equivalent to a phone book; they link the number to the name. The nameserver maintains a directory of domain names that match the IP addresses, or computers. Information from all nameservers on the Internet is compiled in a central registry, making it possible for people across the Internet to access your Web site using domain name.
For new .COM and .NET domains and updates, it may take up to eight hours for changes to become effective. It may take up to 48 hours for changes made to all other domain extensions to become effective. This is because of the number of networks and agencies involved. Delays apply to all domains and registrars. Please allow for this delay when planning Web sites or configuring a domain to work with your email.