[martin-adams]

It's where the server has a proxy that can fetch resources from different places. E.g. ServerA (proxy) get a request for /something, but then fetches it from ServerB (web server) and returns it to the client. It proxies the response to the client.

The comparison is a forward proxy, which the client has, and a reverse proxy is where it's on the server side.

[tyingq]

Reverse proxies also often provide optional benefits like...

Load balancing, not having to run the webserver as root to bind to 80/443, caching responses, buffering, rate limiting, injecting headers, serving static assets, etc.

[d--b]

Got it. I'm actually doing it using nginx to forward to node... Didn't know that's how it was called...