Yes, you can use NordVPN in countries where access to VPNs is restricted or blocked. I've personally used NordVPN in a number of countries with restricted internet including Iran and Cuba. And NordVPN has never let me down. In fact, I recommend NordVPN for places with limited internet freedom such as Iran and Cuba. I recommend NordVPN for these locations because it features obfuscated servers and double VPN, making it more secure than other VPNs. If you're already in a country with limited internet access, you can read my article on how to download NordVPN in blocked countries.