There are multiple ways to use this data. E.g. you can check what links are clicked on pages of the site and determine that it's necessary to move/change some links or site structure; you can check search phrases to check if it is necessary to make some SEO-related changes on the site; etc.
In fact using web analytics to improve the site is a fairly broad topic. There are multiple sites and books on this topic available now, and probably Occam's Razor by Avinash Kaushik will be a good start.
In fact using web analytics to improve the site is a fairly broad topic. There are multiple sites and books on this topic available now, and probably Occam's Razor by Avinash Kaushik will be a good start.