Recently I started buying and selling domain names and I think there is a lot of opportunities to make money there. You can register domain names using Bitcoin on Namecheap and it's super easy, just be careful not to get overenthusiastic, most domain names people buy and think are awesome are actually worthless. You need to do some research before you invest.
This seems very risky to me maybe that i haven't research a lot in domain fields.
Because you already invest for at least 1 year validity in that domain.
The best practice to make money maybe is to sell them in auction, right?