The first article of this series discussed page views per session as a kind of early warning system key performance indicator (KPI) for your website. The second discussed time on site as another warning flag. Both of these articles show specific measurements used to forecast site problems. There are lots of KPI’s you can set up to warn you of impending doom or better show your successes but to go through each one would take me till the end of next year. So to wrap up this series, this article wi.