When you enter a domain name into your browser or you click a particular link, it is necessary to first translate the name into a numerical IP address so that the contents of the website can be retrieved. For example, Facebook could decide to change the server providing its web pages (and, therefore, its IP address) without needing to change the domain name. ![]() Not only is a domain name easier for people to remember, but a domain name provides flexibility in terms of how websites are accessed on the Internet. A domain name (for example, is essentially a human-friendly version of an IP address. While the IP addressing system is a very useful identification mechanism for computer devices, it is not a particularly human-friendly means of identification. All web servers are assigned an IP address, which is a numerical label that is used to identify them and which enables them to be found on the Internet. ![]() The Domain Name System is the mechanism by which meaningful website domain names (such as or ) are translated into the IP addresses (for example, 212.58.244.26 and 74.125.129.94) of the servers providing these websites.
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