Proxy servers are servers which function as intermediaries for requests from clients that do not want to reveal their real location.
There are several software applications that can help users manage these servers, especially to ensure IP privacy.
Users might also rely on proxy servers when they want to access web addresses that are not available in their countries (or their IP has been banned for various reasons).
One will also have the possibility to frequently rotate the proxy server they are connecting to, thus avoiding detection.