Hi @tashword
I hope you’re well today and thank you for your question!
Defender doesn’t provide such feature. Actually, it’s not even a “WordPress related” thing but rather a server level task.
Reverse proxy is an application that by definition works “in front” of an actual app. So in case of website (regardless whether it’s WordPress based or not) it would be an app that’s “between browser and site”.
In reality, it usually is a server-level solution “in front” of webserver that powers the site. For example, a common solution is a “hybrid” server setup of nginx and Apache webservers where Apache is a webserver that directly handles your WordPress site but nginx works “in front of that”, configured as reversed proxy.
It basically means that the “flow” of HTTP request is similar to this
user browser -> reverse proxy -> webserver -> WordPress
That’s simplified explanation but should give an idea.
Defender does provide a firewall and some of its features may partially overlap with what a legitimate reverse proxy would provide but – unlike real reverse proxy – it works within your WordPress. That “by definition” makes it a different type of protection (same applies to any other plugin, even those that “claim” to provide full “reverse proxy” functionality).
Ultimately, you need to look for server-level solution and apply it on server level.
Kind regards,
Adam