.co (second-level domain) current manager, Neustar, markets it to global markets as an alternative to .com, or as a "generic country code top level domain" gccTLD. .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
.tr most popular web server, serving 35.31% of the .tr domains, followed by Apache serving 35.14% of the total .tr domains. Initially, nic.tr, the official registry's domain, was the only second-level domain under this TLD and other second-level domains were prohibited. .tr .tr is the Internet country code top-level domain (ccTLD) for Turkey. It is administered by NIC.TR (under Middle East Technical University) Computer Center and Turkey Internet Society (Local Chapter of ISOC).. .nc.tr is used as a second-level domain for the Turkish Republic of Northern Cyprus, which is a self declared state and not recognised by the United Nations, and