RankBrain – Google’s AI relevance engine
![What RankBrain Does](https://d1fp4e3xca5mrw.cloudfront.net/wp-content/uploads/2016/05/25142814/rankbrain-query-mapping-750x435.jpg)
Credit: Stone Temple Blog – Link
Google calls RankBrain when it’s in use, “the third-most important signal contributing to the result of a search query.”
Google’s mission: to terminate any web pages from its results that don’t provide the highest-quality content and to find the most relevant answers for users.
Now marketers who want to gain precious visibility on always-shrinking organic SERPs must prepare to fight a new war: the war against the machines.
Read full article about RankBrain Judgment Day: four SEO tactics you’ll need to survive