Sandhicihna

https://en.m.wikipedia.org/wiki/Country_code_top-level_domain

https://en.m.wikipedia.org/wiki/Internationalized_country_code_top-level_domain

https://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains

https://en.m.wikipedia.org/wiki/Proposed_top-level_domain#Internationalized_country_code_top-level_domains

https://en.m.wikipedia.org/wiki/.kr