In computer networks, a proxy server is a computer system thing that doing something as an emissary for requests from customers searching resources from other servers. A customers connects to the proxy server, requesting some service, such as a file, web page, resource available from a different server and the proxy server checks the request as a way to simplify and control its complexity.Today, most proxy servers are web proxies, granting access to web content on the world and most of tem affording your personality. A caching proxy server accelerates service requests by retrieving web pages or files saved from a previous http request made by the same client. Caching proxies keep local copies of frequently requested resources, allowing huge companys to decrease their traffic bandwidth usage, while significantly boosting performance. Any united_states proxy servers can mask your identity, also they can provide secure things, like to hide you from some watching ads networks with boring ads. Another thing, with united_states proxy servers you can bypass some youtube, facebook, video and many other social network limitations, unlock content for your country, bypassing it.