I do not there is any real mining site that is out there. These mining sites are always scams in the end. I was working for ryzex a few weeks ago. I had withdrawn over 30 dogecoins and the withdrawal was very swift. I thought of investing in it until the site finally crashed. It is not accessible. I think it was just a formality to cause havoc into the minds of people this December. You just have to stick to sites like this to earn small crypto coins.