These websites pop up like mushrooms after the rain. Such websites are only built to scam people. Cloud mining as an industry is almost dead with the exception of a few legit companies like Hashnest. All others are plain scams. Even at the legit companies in this example Hashnest you will have a very difficult time until you get your investment back if you ever will. That is because of increasing difficulty in the bitcoin network plus maintenance and electricity fees.
Many times these investments go wrong because after you purchase some contract and the difficulty of mining goes up then you can't make the profit which was estimated earlier. So even company don't cheat still there is a risk unless your coin price goes up a lot then you can make some profit. But I also don't trust any of these cloud mining sites instead I buy coins and wait for the prices to go up.