The World Wide Web employs unique numbers identified as IP addresses and every device or web site that is part of the Web has such an address. It really is very difficult to remember to visit 18.104.22.168 to open a website though, that's why a much easier system was made in the 80s - domains. Every domain name contains a main part and an extension, to give an example domain.com or domain.co.uk. A great number of extensions exist worldwide - part of them are given to countries, like .co.uk in the aforementioned example, which is assigned to the United Kingdom, while many others are generic, such as .com or .net. Many extensions are available for registration by every entity and others have particular requirements - company registration, local presence, and so on. You're able to get a new domain via a registrar firm like ours and if the extension allows domain transfers, you'll be able to shift an existing domain between registrars too.