If x% of searches go direct to google or another source, that is x% of the "1 million a day" where DDG doesn't have the opportunity to show me adverts, which is DDG's primary revenue source I assume. So the figure is relevant. But notwithstanding that I agree with your comment - DDG has won me over and has a strong relationship with me.
Re. tracking, it's not just searches that I do that go directly to google; it's the times I go to DDG, am unsatisfied with the results, then tack on "!g" to try it on google. This should provide valuable data on when a user deems results not good enough.
Re. tracking, it's not just searches that I do that go directly to google; it's the times I go to DDG, am unsatisfied with the results, then tack on "!g" to try it on google. This should provide valuable data on when a user deems results not good enough.