It's even worse than that. As I understand it, the definition is not "a measurement of how often a user executes a search, and then goes to a webpage from the s

It's even worse than that. As I understand it, the definition is not "a measurement of how often a user executes a search, and then goes to a webpage from the set of links" but rather "a measurement of how often a user executes a search, and then goes to a different website." That is, I believe Hitwise has no way of knowing whether the user clicks on a link from the search results vs. just navigating to a different page.