How to diagnose what is going with your website if you notice a drop in search ranking.. Or your website drops off the Google index altogether.Many people are aware that Google has / is changing the Googlebot search algorithm with the rollout of Panda. But not all drop in search ranking problems are down to search engine changes.

Matt Cutts explains what to do and where to check what is happening to your website  of you notice a drop in search ranking in the video below.