"Bulletproof Hosting" is what people might try to link. It doesn't exist. Ultimately all providers have uplinks to a network provider and each layer of resell

"Bulletproof Hosting" is what people might try to link. It doesn't exist. Ultimately all providers have uplinks to a network provider and each layer of reseller will protect those expensive links. Illegal material will draw the attention of people that can have the servers and network gear seized and the links terminated. There are providers that are friendly to hosting spam/malware because authorities don't really care about those things. There was a time when certain countries would be resistant to take-downs but those days are long behind us. The bigger the group of people you are sharing content with and the more money that content is worth will be a factor to how long it takes for the server to be disabled. Your current method of using Tor might be temporarily working but with time if it gathers attention from certain people it will get DDoS'd and eventually blackhat security researchers may find a weakness that allows them to get your real IP address and location. You will see these attempts if you are logging the first few KBytes of the POST body and of course normal access logging.