The World Wide Web is based on unique numbers known as IP addresses and every single unit or web site that is a part of the Web has this kind of an address. It would be very difficult to remember to visit 188.8.131.52 to see a website though, that's why a significantly simpler system was created in the 80s - domains. Each and every domain name is made of a primary part and an extension, for instance domain.com or domain.co.uk. A great number of extensions exist globally - some of them are assigned to countries, like .co.uk in the aforementioned example, which is assigned to the United Kingdom, while many others are generic, like .com or .net. A number of extensions are available for registration by any kind of entity and some others have precise requirements - business registration, regional presence, etc. You will be able to acquire a new domain from a registrar company such as ours and if the extension allows domain transfers, you will be able to move an existing domain name between registrars too.