All TLDs operated by Tucows Registry Services enjoy full support for DNS names in any language or script among the following:

• Arabic

• Belarusian

• Bengali

• Bosnian

• Bulgarian

• Chinese, Simplified, & Traditional

• Cyrillic

• Danish

• Devaganari

• English

• French

• German

• Greek

• Gujarati

• Gurmukhi

• Hebrew

• Hungarian

• Icelandic

• Italian

• Japanese

• Jawi

• Kannada

• Korean

• Latin

• Latvian

• Laotian

• Lithuanian

• Macedonian

• Malayalam

• Montenegrian

• Myanmar

• Oriya

• Polish

• Portuguese

• Serbian

• Spanish

• Swedish

• Tamil

• Telugu

• Thai

• Ukranian

Support for these languages or scripts follows the most current policies and standards, notably the IDNA2008 standard. The support is extensive and includes all of the services: WHOIS and other directory services, Domain Registration and DNS. The actual tables can be found in the https://www.iana.org/domains/idn-tables.

Note that English language support does not require the use of IDN, as domain names can be properly encoded using the default ASCII character set. The policies set forth in this document only concern the use of IDN to encode internationalized domain names. All other Registry policies remain in full effect regardless of the use of IDN and are to be applied to IDN Domain registrations after satisfying the policies described in this document.

The following policy statements related to IDN apply to all TLDs operated by Tucows Registry Services:

• Registration of IDN labels under TLDs operated by Tucows Registry Services will trigger the blocking of their corresponding "IDN variants".

• Registration of IDN labels must indicate the IDN Table name being used and the corresponding A-label. Providing the U-label is optional. All data must be consistent in order for the registration to be processed.

• IDN Labels cannot combine characters from more than one IDN Table. All characters composing an IDN Label that is acceptable for Domain Registration must be drawn from exactly one IDN Table.

• Domain registrations using IDN have their corresponding A-label and U-label cross-checked if the U-label is provided. Both forms must exactly match. If the A-label and U-label do not match under the specific IDN Table that was specified, the Domain Registration is not accepted.

• Domain registrations meeting all these criteria are then subjected to the regular Registry policies.

• Please note registrations of Chinese IDN variants will be blocked automatically.

Please email ry-services@tucows.com if you have any questions.