. st is the country code top -level domain ( ccTLD) for São Tomé and Príncipe. It exists since 7 November 1997 and is managed by the company Tecnisys. Previously, the ST Registry was based in Stockholm for st. Responsible.
Domains can only be registered on the second level and be between two and 63 characters. It alphanumeric characters are only supported internationalized domain names are not therefore possible. Certain addresses such as. Com.st or. Net.st are locked and can not be registered.