Proxy Server

proxy server is a server that retrieves Web pages for you, providing only its own identity to the sites it visits. Requesting data comes first to the proxy, and through the requested proxy, the data is transmitted to you. Usually, they are used to increase the effective network speed of your connection to the Internet because they save informations and files that are requested by many many users in a special database what is called "cache". When you retrieve pages behind proxy, then proxy server first look into "cache" and if the same information is found you will gets directly because of previsly storing in "cache".
Anonymous proxy server hide your IP address and hide information about you and your interests.Besides that, anonymous proxy servers can help in the cases when, for example, the owners of the Internet resource force some limitation on users from certain countries, cities, geographic regions or even restrictions on some ip address ranges.