Why Google Analytics visits do not match with Nevanto Automation?

Sometimes Google Analytics won't match 100% with the results in Nevanto Automation.

There could be two main reasons behind this discrepancy:

1- Google uses different tracking technology for different analytics segments, one of them used for visitor tracking is called "image pixel tracking". Nevanto Automation uses jquery to track web visits. Some browsers have configurations with image tracking disabled.  Below is a snapshot example:

 

2- Another reason might be the placement of the script within the body of the page. For example, your Nevanto tracking code could be placed in the header while your Google code in the footer. If for some reason, certain visitors are leaving pages before they fully load the content of the page, the Nevanto tracker could load and track the visits while Google code was unable to fully load.