A domain is a string of alphabetic characters, numbers, a pause character, and their connections that describe the address of a given website on the web. The dot is followed by a suffix, which is an extension that helps identify the website, for example the word “.com” or “.org”. Using domains with the extension, the user can enter the address, displaying its content on his computer. A domain can therefore easily be compared to a home address, without which the delivery of letters would be impossible, similarly to visiting a given website. Usually, domains are paid periodically for being able to use them and are an essential part of the internet. The possibilities of domain names are endless and are not imposed from above, which means that we can register every string of words – of course, if it is not registered by someone else.