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web based proxy servers

An proxy server is a computer that offers a calculator network service to allow clients to make indirect electronic network connections to other network services. A client connects to the proxy server, then requests a connection, file, or other resource available on a different server. The placeholder provides the resource either by connecting to the assigned server or by serving it from a cache. Inch some cases, the proxy may alter the client's asking or the server's response for various purposes.

Web proxy servers are generally classified into four groups: Transparent, anon., Distorting, and High Anonymity. Transparent proxies identify themselves because a proxy server and also makes the original IP available through the http headers. Anonymous proxies describe themselves as a proxy server but does not break the original IP address. Distorting proxies identify themselves as a proxy server, but make an incorrect original IP available through the http headers. High Anonymity placeholders do not identify themselves are proxy servers and don't reveal the original IP address.

When it bears on security the bottom line is to be wary when using proxy servers, and only use proxy hosts of known integrity (e.g., the owner is acknowledged and trusted, has a clear privacy policy, etc.), and never use proxy servers of unknown integrity. If there has no choice but to use unknown proxy hosts, do not pass any private information (unless it's properly encrypted) through the proxy.

If you are in the habit of using proxy servers and are diffident of their type you can visit whatismyipaddress.com and try the proxy tester to see if your placeholder server is detectable.