Google’s 200 Ranking Factors is a very detailed list of the known 200 aspects that Google considers in their ranking formulas. The overall length of the infographic is the major visual feature that catches your attention, and communicates a clear message about Google’s immensely complicated algorithm and how difficult SEO can be. The second level of of the design is the actual details about each and every one of those ranking factors that the audience can read if they want specific information.
Google has confirmed that they use approximately 200 ranking signals in their algorithm. However, they’ve never publicly listed them all. While this infographic is by no means official, it aggregates the best information we have about how Google ranks pages and websites.