There are many functions a proxy server can perform. The main one is to act as an intermediary between a user’s computer (local network) and the global network. The traffic goes through a proxy server on its way to the final destination (a web resource). The request travels back to the proxy, and then the server transmits the content from the resource to you. Now that you know how a proxy works, you can guess another important function — adding a level of security. It runs as a filter preventing you from assessing dangerous websites and seeing inappropriate content. On the other hand, proxies help users to maintain anonymity and privacy, thus, making content from blocked sites available for some users.