In an ideal world everybody uses analytics tools in a way that ensures that
get tracked and both client and SEO can
see where the most valuable visitors come from and how SEO efforts contribute to the overall success of a site.
Sadly, in reality it’s not always as easy to accomplish. While it’s now easier to sell analytics services to clients (as everybody agrees that you need them and clients are quick to give you access to Google Analytics), in many cases there are lots of issues that combined make you apply SEO tactics blindly.