Commonly known as DNS, it is a global system which allows internet domain names and addresses to be tracked and regulated. Rather than having to use long and complicated Internet Protocol (IP) numbers to identify and access websites or email addresses, users can simply type in an appropriate or easy-to-remember name in plain language. For example, it is far easier to type into your browser than a long set of numbers which is almost impossible to remember. Under DNS, an internet address has four elements: a server prefix; a domain name; a domain suffix/extension; and a country code.