Well all you need to do is actually spend some time learning about their project, team, backing. Dont buy into dapps. With more time spent you will figure out how to filter through obvious shit faster and faster.
I'd suggest taking a look at btc for a newcomer. Start studying everything about icos/markets. Mostly invest into infrastructure projects dApps are risky right now.
This affects online web users that use google dns and logged in. How to check: Open a command window. For example, on Windows 7 systems, select Start > Run and enter cmd . At the prompt, enter. ipconfig -all. Your system returns information like the following, including the IP address.