What is Zeroth Rank position?

Zeroth Ranking
Elite Site Optimizer helps the users to keep track of the featured snippet in the search engine results (i.e. above all search results). If any web page is tracked for its featured snippet result then that page is ranked as Zeroth rank (Featured Snippet page). 

The Zeroth rank featured snippet may appear in search results if the web page have relevant Q & A model content, may have used long tail keyword relevant to the user search, synonyms words of user search queries, or have rich snippets on the web page that enables the page to display for Zeroth rank. 

Elite Site Optimizer keeps track of these Zeroth ranked keywords and helps businesses that they have been ranked for these special keywords.