It is now possible to register Danish domain names with the German character ẞ – also called scharfes S or double-s.
The change happened on 30 December, and was the result of an executive order that DK Hostmaster must no later than 1 January, 2021, offer registrants the possibility to use ẞ in .dk domain names.
When registering a domain name with ẞ, DK Hostmaster advises that some browsers and mail servers change the domain name when it is being used.