True. but based on my researches don't use DPI on the NIN, so you might be able to use WG or OpenVpn on a VPS inside Iran but not to a VPS on let's say digital

True. but based on my researches don't use DPI on the NIN, so you might be able to use WG or OpenVpn on a VPS inside Iran but not to a VPS on let's say digital ocean. They can also selectively increase the or decrease the strength of their DPI as well, for example a range of IP can be graylisted and nothing will work on it, or they put more active probing effort on some ranges of IPs.