A domain name is basically a ‘front’ for the unique string of numbers, called an IP address, which identifies where a website is located. Domain name registration is available with the following extensions: - .com An international name for commercial organisations. .net Originally intended for Internet Service Providers, but can be used by anyone. .org Originally intended for non-profit organisations, but can be used by anyone. .biz An international domain for business use only. .info An international domain for information services. .co.in The Indian version of .com