To my thinking, it creates a chain of "it's really hard to block them all" - as soon as I saw (via the link) that you submit your new proxy to https://signal.tu

To my thinking, it creates a chain of "it's really hard to block them all" - as soon as I saw (via the link) that you submit your new proxy to https://signal.tube https://signal.tube I thought "...so the Iranian gov't just has to block any and all access - DNS, HTTP - to that domain" and people can't even see what proxies are out there. So if my friendly domain name is "learned as a Signal proxy" they just block my domain (personally, I'd use two domains to double-blind it). My conceptual idea is that how you get the person the name of the proxy to use has to hide as signal amongst the noise and not get trapped in DNS/domain blocking filters - and if it's keyword blocked by the Great Firewall, you just start asking other random domains for their MX records etc. I believe it's generally referred to as steganography: https://en.wikipedia.org/wiki/Steganography https://en.wikipedia.org/wiki/Steganography