How does DNS work

From Bandipedia

When a human types something like www.bandwidth.com into a web browser, the computer needs to get the IP address associated with the name before it can contact the website. If the computer doesn’t already have the IP address, it asks a computer nearby. (Also known as its DNS Cache server) If that computer doesn’t know what the IP address is, it asks a root DNS Cache server on the Internet. That server doesn’t know what the IP address is, but replies with the address of a server that does know. (In this case, the bandwidth.com Authoritative DNS server at 216.27.14.66) Finally, a request is made to the Authoritative DNS server and the IP address is returned to the web browser and the website gets loaded. The systems works similarly for turning IP addresses into names in a process called Reverse DNS.

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