Dot-Com: The dot-com which stands for "commercial" was first established in 1985 which is currently under the control of Verisign company, and the U.S top at that movement and still using this Top Level Domain (TLD). Many companies in different parts of the world own this Top Level Domain because it is considered desirable as it was the first commercial Top Level Domain . As there has been no restriction that who can use .com domain so its popularity became much higher in 1990's era as new companies were emerging and they preferred to use .com as Top Level Domain. But as the time passed there are some new version of the domains e.g. .biz (business), .edu(education), .gov (government), .net (network) etc, and the introduction of these version caused some damage to the dot-com popularity. Many countries prefer to use second level domain under there own ccTLD and they are usually in the form of .com.xy or .co.xy etc. E.g. Pakistan has .com.pk in which .com is the top level domain while .pk is the second level domain other examples are .co.uk (United Kingdom),.com.cn(china). As there is no such kind of rule that who can register the .com version there are some problems as well e.g. A non-profit organization is using .com which may be considered contrary to the domains original pupose the .org or .gov could be more appropriate for such organizations. Now a days the strategic people are very much aware of it and chooses the domains which suits to them e.g. Now a days the media channel uses .tv domain, the non-governmental organization are using .org which is a very good sign.
