Proxy is a method of sharing of Internet access. The proxy uses a cache for saving often visited webpages, therefor improving access time (see also cache).This is the use of one computer or device to make requests in place of another over a network. Proxies are often used for Internet security or control of connections. You can use a proxy or proxy server to pass data between your internal network and the Internet. A machine on your network sends a request to the proxy. The proxy sends the request to a server on the Internet. Thus, it stands in for the computer on your network. The server on the Internet never knows that the request is coming from anywhere but the proxy. Thus 100 machines on your network could all access an Internet server and it would look like the proxy was making all of the requests. Some proxies have caching and site filtering built in.

This definition is in context to Computer Technology. See more contextual defintions for Proxy.