When you run a Google Ads campaign, you're responsible for the quality of the traffic that your ads generate. This means that you need to make sure that your ads are clicked on by real people, not by bots or by people who are paid to click on ads. Google has a sophisticated system for detecting invalid clicks, and they use a variety of signals to determine whether a click is valid or not. Some of these signals include: 1. The device that the click came from 2. The IP address of the device 3. The geographic location of the device 4. The time of day that the click occurred 5. The type of browser that was used 6. Whether the click was on an ad or on a search result 7. Whether the click resulted in a conversion