ICANN Acronyms and Terms
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Internationalized Domain Name(IDN)
A domain name in which one or more of its labels contain characters other than ASCII letters, digits, or hyphens. Because IDNs support the use of Unicode characters, they can include characters from local languages and scripts. For example, [실례.테스트], is a domain name composed entirely of Hangul characters.
IDNs are implemented using the Internationalized Domain Names in Applications (IDNA) protocol.