Proxy Server What is a Proxy Server? A proxy server acts as an intermediary between a user and the internet, handling requests on behalf of the user to enhance security, privacy, and performance. Explanation Proxy servers can filter traffic, cache data, and mask users’ IP addresses, making them useful for accessing restricted content and protecting sensitive information. Practical Example of a Proxy Server A business uses a proxy server to filter and monitor employee internet usage, ensuring compliance with company policies and enhancing security.