I know that the deep web mainly uses cryptos as a means of transactions for people who want to buy things over there, but what type of cryptos are mainly used when making those transactions? Its just a curious question I have in my mind.
I don't suggest you to visit those site for your curious. Those site are more dangerous than normal websites. This site are more secure if you are smart. There all people like privacy, so most of the people are using Bitcoin but now some are using Monero gold coin.