.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
Domain registration copied to Top Level Domain (TLD) servers around the world and creates the primary routing tables used by every computer that connects to the Internet. Each ICANN-accredited registrar must pay a fixed fee of US$4,000 plus a variable fee. The sum of variable registrar fees is intended to total US$3.8 million. The competition created by the shared registration system enables end users to choose from many registrars offering a range of related services at varying prices. Domain registration information is maintained by the domain name registries, which contract with domain registrars to provide registration services to the public. An end