Both .li and .ch are country codes under which naming system?
.li .li is the Internet country code top-level domain (ccTLD) for Liechtenstein. The .li TLD was created in 1993. The domain is sponsored and administered by the University of Liechtenstein in Vaduz. Registration of .li domain names used to be managed by SWITCH, administrator of Switzerland's .ch ccTLD. In February 2013, SWITCH discontinued its .li registration service for private customers, delegating it to a number of recognized partner firms.
Country code second-level domain A country code second-level domain is a second-level domain to a country code top-level domain. Such a domain may be reserved by the domain name registry for the registration of third-level domains or assigned to a third party as a subdomain.