How can I check if a domain name is free or not? - Knowledgebase / Routines / New registration of domains - Support Portal | Registry Services
How can I check if a domain name is free or not?
If you want to check if a .se or .nu domain name is free or not, you can use the Free service.
The free service is available here: http://free.iis.se/
The service responds with "free" if the domain is free and "occupied" if the domain is already registered.
Here is an example, http://free.iis.se/free?q=example.se