Internet Information Services (IIS). It is Microsoft's robust web server. With IIS's load-balancing capabilities, multiple application servers may handle incoming HTTP requests, ensuring great dependability and scalability.

By taking a request from a client, IIS sends it to an application server, and then returning the response, it can also function as a reverse proxy. The speed, dependability, and safety of your app are all enhanced with a reverse proxy. 

One drawback of IIS is that it is Windows only. But it's quite customisable. To make it work for your application, you can adjust its settings.