All the learning RankBrain does is offline, Google told us. He receives lots of historical research and learns to make predictions from it. These predictions are tested and, if they prove to be correct, the latest version of RankBrain is released. Then the offline learning and testing cycle is repeated. Does RankBrain do more than query refinement? Generally, how a query is refined – whether by derivation, synonyms or now RankBrain – has not been considered a ranking factor or signal. Signals are usually content-related factors,
such as words on a page, links pointing to a page, whether a page is on a secure server, etc. They can also be tied to a user, such as a searcher's location or search fax number list and browsing history. So when Google talks about RankBrain as the third most important signal, does it really mean as a ranking signal? Yes. Google reconfirmed to us that there is a component where RankBrain directly contributes in some way to the ranking of a page. How exactly?
Is there a type of “RankBrain score” that could assess quality? Maybe, but it seems much more likely that RankBrain is somehow helping Google to rank pages better based on the content they contain. RankBrain might be able to summarize what a page is better than Google's existing systems have. Or not. Google says nothing but a ranking component involved. How to learn more about RankBrain? Google told us that people interested in