Google has announced to add a new feature in webmaster so that server error (DNS, Server Connectivity and robot.txt) error would be categorized. Since server error comprises of different types of error concerned to the server and it affects site health in different ways. Now it will be specialized by Google, and as a result it can be traced that how much a site,s health is affected due to server connectivity. This article will be updated tomorrow.
Site Error Breakdown in Google Webmaster, How it will affect SEO