If you were getting good traffic from Google and suddenly your traffic or revenue dropped in numbers, and there is no glitch on the Technology / Analytics front, there is a high chance that your site might be penalized. Some of the alarming signs of penalty are : Usually, the drop occurred during Core – Algorithm & Spam-related updates. Penalty might be reported in the Search Console in case of manual action Your site might have a Negative SEO Attack Your current SEO might be indulging in spam or black hat practices