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The domain name net is a generic top-level domain (gTLD) used in the Domain Name System of the Internet. The name is derived from the word ''network'', indicating it was originally intended for organizations involved in networking technologies, such as Internet service providers and other infrastructure companies. However, restrictions were never enforced and the domain is now a general purpose namespace. It is still popular with network operators, the advertising sector, and is often treated as an alternative to . is one of the original top-level domains〔RFC 920, ''Domain Requirements'', J. Postel, J. Reynolds, The Internet Society (October 1984)〕 (the other six being us, , , , and ) despite not being mentioned in RFC 920, having been created in January 1985. As of 2011, it is the third most popular top-level domain, after and . Verisign, the operator of after acquiring Network Solutions, held an operations contract that expired on 30 June 2005. ICANN, the organization responsible for domain management, sought proposals from organizations to operate the domain upon expiration of the contract. Verisign regained the contract bid, and secured its control over the registry for another six years. On 30 June 2011, the contract with Verisign was automatically renewed for another six years. This is because of a resolution approved by the ICANN board, which states that renewal will be automatic as long as Verisign meets certain ICANN requirements. Registrations are processed via accredited registrars and internationalized domain names are also accepted.〔(How Internationalized Domain Names (IDNs) Work ), verisigninc.com〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「.net」の詳細全文を読む スポンサード リンク
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