Google's search algorithm is a black box and nobody knows exactly how it works. SEOs have built a list of best practices based on testing and correlations, but nothing is ever guaranteed in SEO. This makes it difficult to report on SEO work, but these posts will help you track and report the right metrics for your campaigns.
On Monday Bloomberg Business broke the story of RankBrain, a new algorithm, which Google claims is already the third most important ranking signal in search. RankBrain affects a significant amount of search queries, roughly 15 percent of all searches in Google.
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