What are IDNs?

IDN is short for Internationalized Domain Name. An IDN contains one or more native language characters and can contain letters or characters used in any other non-latin based language such as Chinese, German, Spanish, Russian, and even Arabic characters.

Asia Registry is pleased to provide you with a vast variety of Asia Pacific IDNs such as .CN, .SG, and many more.

What are the benefits
of owning an IDN?

The key benefit of IDN Domain Names is that it allows you to target your audience in their own native language. With all major web browsers and email clients now supporting non-English characters, many online businesses are now realising the potential benefits of IDN Domain Names, and they continue to grow in popularity each day.

Search Engine Optimization (SEO) is another benefactor of using an IDN domain as it will allow you to target the exact words non-English speakers are typing when using search engines.

Supported Languages

Select language types to view which domain extensions support it's special characters.



How do IDNs work?

Domain name servers only support the English alphabet (A though Z), digits zero to nine and a couple punctuation marks like dashes and full stops. With those limitations in mind a system was developed called Punycode, which allows non-English characters to be accepted in domain name servers.

Punycode converts any non-English character into code that can be read by DNS. As an example, españa.com when converted using Punycode results in the domain xn--espaa-rta.com. After being converted by Punycode, the resulting domain is called an ACE String.

When you register an IDN Domain Name, you are registering the ACE String as these are supported by DNS since they do not contain any non-English characters.


  • You cannot register an IDN domain that uses more than one character script. This means that you cannot for instance register a domain that uses Russian and Chinese letters.

  • IDNs cannot have less than three characters and more than sixty four characters. Any domain outside that boundary cannot be registered.

  • Letters part of the Braille, Inherited and Linear B character sets are not supported by IDNs at this stage.

  • Only Ideographic and Alphanumeric languages are supported.

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