.co (second-level domain) .co (second-level domain) In a number of countries, .co is used as a second-level domain to mean "commercial" and domain registrants register second-level domains of the form .co.xx, where xx is the country code top level domain (e.g., .co.uk in the U.K. and .co.jp in Japan). Some of the countries using .co as a second-level domain include: Barbados (.bb), Cook Islands (.ck), Costa Rica (.cr), India (.in), Indonesia (.id), Israel (.il), Japan (.jp), New Zealand (.nz), South Africa (.za), South Korea (.kr), Thailand (.th) and the United Kingdom (.uk). .co is also a country top-level domain corresponding to Colombia. Its
Internationalized country code top-level domain The ICANN board approved the establishment of an internationalized top-level domain name working group within the Country Code Names Supporting Organization (ccNSO) in December 2006. They resolved in June 2007 "inter alia" to proceed and asked the IDNC Working Group to prepare a proposal, which the group delivered in June 2008, "to recommend mechanisms to introduce a limited number of non-contentious IDN ccTLDs, associated with the ISO 3166-1 two-letter codes in a short time frame to meet near term demand." The group proposed a methodology using ICANN's Fast Track Process based on the ICANN charter to work with the Internet