A powerful feature of reverse proxy servers is their caching capabilities. Reverse proxies can efficiently store and serve cached copies of frequently accessed content, delivering substantial benefits to users and backend servers.
When a reverse proxy receives a client request, it first checks its cache to see if it already has a copy of the requested content. The reverse proxy can serve the content directly from its cache without contacting backend servers if it does. This reduces the backend server load and improves user loading times.
By caching frequently accessed content, reverse proxies minimize the need to fetch the same data from backend servers repeatedly. This improves the user experience with faster loading times and helps optimize server resources, as fewer requests need to be processed by backend servers.
More info: Importance of Background Checks