Internationalized domain names (IDNs)

Internationalized Domain Names (IDNs) are domain names that contain characters other than unaccented Roman letters (A-Z), digits (0-9), and the hyphen. For instance, 日本語.idn.icann.org contains Japanese characters.

IDNs refer to the text before the '.COM', or '.ORG' part of the domain. The part after the name (.COM, .ORG, etc.) is called a TLD (Top Level Domain).

A TLD (Top Level Domain) is the part of the domain after your specific name such as .COM or .ORG. Generic TLDs include .COM, .ORG, and .NET and are not specific to any country. 

A country specific TLD would be used for a single country. For example, .DE (Germany) or .CA (Canada). You can view a full list at Wikipedia.

DreamHost offers a wide variety of domain names including country specific TLDs which you can see in the panel at Manage Registrations. When the Manage Registrations page opens, click the See full pricing link.

You can also view a full list at dreamhost.com/domains/pricing.

International TLDs are different from country specific TLDs in that they use characters other than unaccented Roman letters (A-Z), digits (0-9), and the hyphen.

DreamHost does not currently support the registration of IDN TLDs. For example:

• .xn--55qx5d (.网络)
• .xn--io0a7i (.公司)

These are not currently a component of the ICANN DNS root and thus are not available to all Internet users. View the following Wikipedia page for a full list:

• Internationalized country code top-level domains

It is currently not possible to register an Internationalized domain name at DreamHost. However, you can still host it at DreamHost after purchasing it from another company that supports IDNs.

If you've already purchased your IDN at another registrar, you can host it within your DreamHost account.

1. Convert your domain into punycode using a website such as punycoder.com.

   For example, 测试假域名.com would convert into punycode such as xn--sxqv5g23dyr3a428a.com.

2. View the Adding a website and hosting article for instructions on adding a new domain to your panel.
3. Choose the Enter a domain or subdomain you already own option and enter the converted punycode.
4. Proceed with the remaining steps to add a new domain.

Some international registrars have changed the way they handle TLDs. The registrations no longer include reference to the nameservers themselves but instead they reference an NSSET ID. You must register a group of nameservers to get this ID, then you can use it when registering the domain. The advantage is claimed to be that you can edit NSSET (change the nameservers) and this is applied to all domains referencing the same NSSET.

The TLDS that are known to use this are:

• .cz (Czech Republic)

The NSSET ID you must use is "DREAMHOST".