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TCP/IP Guide by Charles M. Kozierok

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DNS Organizational (Generic) TLDs and Authorities

The top of the DNS name hierarchy is managed by a central authority, which controls the entire name space by virtue of deciding which TLDs are allowed to exist. Obviously, it is very important that a great deal of thought go into how the TLDs are chosen. A poor design at this top level would make the entire hierarchy poorly reflect the actual structure of organizations using the name space.

The creators of DNS could have chosen any number of ways to structure the Internet's name hierarchy. One obvious possibility is to structure the Internet based on geopolitical boundaries: countries, states, and so forth. Another sensible idea is to structure the name space based on types of organizations.

The ...

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