Google Publishes Guide to Identify Existing and Retired Ranking Systems

Google has outed an all-new guide that will make users aware of the ranking systems that Google still uses to rank its search results and the ones that are retired. The guide differentiates and alphabetically lists the currently operational and retired ranking systems, making things easier for its patrons. In the guide, Google has also introduced two new terms: ranking “systems” and ranking “updates.” A ranking system like RankBrain constantly runs in the background and performs. On the contrary, a ranking update refers to a one-time change to existing ranking systems. For example, the Helpful Content System always runs in the background. But it receives updates for improved performance. Core Algorithm Updates and Spam Updates also receive one-time changes to their ranking systems to improve their function.