duckduckgo

Who here uses duckduckgo.com? I would like to try it, but I cannot convince myself that they are actually fair. How do you know that they don't track you, other than their own word? It's fb selling their user data once again.

It's a network service. This is true for all network services. It doesn't matter who they are if it's a network service, you have to ask this question for all of them.