Are you confused by DNS?
To me the term “top level domain” seems confusing as the top level of the domain is actually the part after the dot. Most people are familiar with the top level domain of .com. But there are many others. For example, .com, .net, .gov, .edu, and so on.
The whole domain name system (DNS) can be confusing to many. It is a naming system for computers, or any nod connected to the internet, including such things as printers. If it where not for DNS, we would be typing in numbers for our domain names. Imagine trying to remember the numbers to all your favorite websites.
Top level domains are the responsibility of Internet Corporation for Assigned Names and Numbers (ICANN). They are responsible for assigning organizations to maintain the DNS top level domains. They are a non profit organization that was founded on September 18th of 1998. Not so old really.
They are also responsible for many other tasks. Before these duties fell on the shoulders of ICANN, the job belonged to the U.S. Government. The other tasks that are assigned to ICANN include such things as [internet protocol, country code, root server system management, address space allocation, and many other functions.
Basically ICANN preserves the continuing stability of the internet.
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