The World Wide Web is based on unique numbers known as IP addresses and each device or website that is part of the Web contains this type of an address. It is very hard to remember to go to 18.104.22.168 to see a website though, so a much simpler system was launched in the 80s - domain names. Every single domain name is made of a main part plus an extension, for instance domain.com or domain.co.uk. A great number of extensions exist globally - part of them are given to countries, like .co.uk in the abovementioned example, which is assigned to the United Kingdom, while others are generic, for example .com or .net. Some extensions are available for registration by any entity and some others have certain requirements - business registration, regional presence, etc. You will be able to acquire a brand new domain name from a registrar organization like ours and if the extension allows transfers, you're able to transfer an existing domain name between registrars too.