Google has recently updated its documented ranking systems page and has removed four ranking systems from the list. These include the page experience system, mobile-friendly ranking system, page speed system, and secure sites system. The page experience system has been removed from the main list, but it has not been added to the retired list. On the other hand, mobile-friendly ranking, page speed, and secure sites systems have been removed from the retired list.
It is unclear if these ranking systems ever played a significant role in Google’s search ranking algorithms. It has been suggested that these algorithms were relatively minor and had a negligible impact on website rankings.
Google removed the page experience system because it is more of a concept rather than an actual ranking system. In its FAQs, Google stated that page experience signals, such as Core Web Vitals, mobile-friendliness, HTTPS, and no intrusive interstitials, may not directly inform ranking but are worth paying attention to since they align with success in search rankings.