The World Wide Web uses unique numbers called IP addresses and every unit or website that is part of the Web has this kind of an address. It is pretty hard to remember to go to 126.96.36.199 to load a website though, so a much easier system was made in the 1980s - domains. Every single domain name features a primary part plus an extension, for instance domain.com or domain.co.uk. Many different extensions exist worldwide - part of them are assigned to countries, such as .co.uk in the aforementioned example, which is given to the United Kingdom, while many others are generic, like .com or .net. Many extensions are available for registration by any entity and others have particular requirements - company registration, local presence, etc. You will be able to get a brand new domain via a registrar company like ours and if the extension allows domain transfers, you're able to transfer an existing domain between registrars too.