Proxy server they are HTTP proxies or computer which acts as a buffer between the user and the Internet realm.
The HTTP proxy can be serving multiple functions. It may provide anonymous services. So that surfers may not be traced back to their IP’s.
Proxies can also act as interfaces between local networks and the internet. The version of the webpages can be saved so, that they can be called up faster from a local network by reducing the amount of data traffics.