The World Wide Web uses unique numbers called IP addresses and each device or site that is a part of the Web contains this type of an address. It is very hard to remember to visit 18.104.22.168 to open a website though, so a much quicker system was made in the 1980s - domains. Each domain contains a primary part as well as an extension, for example domain.com or domain.co.uk. Many different extensions exist worldwide - some of them are assigned to countries, like .co.uk in the aforementioned example, which is assigned to the United Kingdom, while others are generic, like .com or .net. Various extensions are available for registration by every entity and others have certain requirements - company registration, regional presence, and so on. You will be able to get a new domain through a registrar organization like ours and when the extension allows domain transfers, you will be able to relocate an existing domain name between registrars too.