The World Wide Web is based on unique numbers referred to as IP addresses and every device or site that is a part of the Web has such an address. It is very hard to remember to visit 123.123.123.123 to see a website though, that's why a much simpler structure was launched in the eighties - domain names. Each domain is made of a primary part plus an extension, for example domain.com or domain.co.uk. A number of extensions exist globally - part of them are assigned to countries, for example .co.uk in the aforementioned example, which is given to the United Kingdom, while others are generic, like .com or .net. Many extensions are available for registration by any kind of entity and others have particular requirements - business registration, local presence, and so on. You'll be able to obtain a new domain via a registrar firm such as ours and if the extension allows domain transfers, you'll be able to move an existing domain between registrars too.