How Google Muddies Algo Updates
Aaron Wall created an infographic that dissects how Google makes it difficult to perceive or understand algorithm changes. For example, overlapping changes to Panda and Penguin make it more difficult to fix after differentiating between the two. He also calls attention to Google's propensity to make updates during the weekend when search experts are away from work, making it more difficult to reverse engineer during normal shifts. It also makes it difficult to isolate changes.