Well, I decided to give your website a chance and registered

I would like to know if the earned Dogecoin can somehow be exchanged for DHs, or should they first be withdrawn and then deposited to the address where they are converted automatically into mining power?
yes DH / S is the power of mining at Dogecollect, you can get 1 DH/S free when registering, and you can also buy DH/S, 1 DH/S is equal to 1 DOGE and the way is easy, you can simply deposit a few DOGE and automatically will be converted to DH/S and you can start mining, to be withdrawn just click the button withdrawn and at least 50 doge withdrawn. if there are more questions I will answer