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subdomain
(redirected from Third-level domain)

    Also found in: Acronyms, Wikipedia 0.04 sec.

subdomain

A lower-level component of a domain name. For example, www.mycompany.com and support.mycompany.com are subdomains of mycompany.com, which is known as a "second level domain." See zone and root domain.



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The name domain is called a third-level domain, because it uses an extra dot, as in the case of john.
Domain registrars sued over URL patent by Database and Network Journal
vn" web extension, individuals and businesses could only register third-level domains such as ".
Dot VN, Inc. Begins Worldwide Registration of Top Level Domain .VN ... by Business Wire
pro domains were only available as industry-specific third-level domain names, such as www.
EnCirca .pro Web Service Creates New Online Marketing Opportunities ... by Business Wire
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