I’m trying to host a few docker services from my house, but my IP appears to be blocking port 80, so the only way to get a domain working that I’ve found is domainname.com:portnumber (I have port forwarding set up in my router, and can reach a wide range of ports, but not 80).

It looks like cloudflare will point sites to my IP but not ports, and because I can’t reach port 80, I can’t figure a way to route things through NGINX proxy manager on the same box.

Is there a free external service I can use as a reverse proxy to point requests to specific ports on my self-hosted box? Or else, is there another way to make my sites useable without the enduser having to specify ports?