Please use this form to test UTF-8 hostnames. A list of supported Top-Level Domains exists in Zend_Validate_Hostname in the $_registeredTlds class property. You can enable/disable IDN support by changing the radio button below.
Some example valid IDN domains to test include: bürger.de, hãllo.de, hållo.se, bÜrger.de, hÃllo.de, hÅllo.se, höhö.ch
Some example invalid IDN domains to test include: hãllo.se, bürger.com, hãllo.uk