Google updated their documentation for Google Discover to clarify why websites may lose traffic from Discover. Three Reasons Why Discover Traffic ChangesGoogle Discover traffic is fantastic when it happens. But it’s not a good idea to build a business model around Discover traffic and become dependent on it because Discover traffic is unreliable. Google’s new documentation lists three reasons why Discover traffic changes:Changing interests Content types Updates to Google Search1. Updates to Google SearchGoogle’s search algorithm updates can also affect Google Discover traffic.