title: Google Analytics not tracking all page views
body: <p>How (im)precise is Google Analytics actually? I've been using Google Analytics for years now on a pretty well visited web site (800k+ visits per month).</p>
  
  <p>Now I decided to log every page request in a database table, and I'm tracking the user-agent of the request. I have also eliminated bot requests (googlebot, bingbot and many more...)</p>
  
  <p>What I found out is that I have almost more than double requests to a page than Google Analytics pageviews is willing to admit.</p>
  
  <p>E.g. GA shows 137 pageviews to a specific URL, but I tracked even 255!</p>