The software tracks the IP from which your Google Performance Max was clicked. There is an analysis of the device from which the click was made, the inclusion of the VPN, the range of the IP address and other factors.
After passing the click check and comparing it with the blocking parameters, the IP address is assigned the status of a quality one or which needs to be blocked.
If the IP address has received the status of fraudulent, it is automatically entered into the GoogleAds advertising account at the level of the advertising campaign as excluded.
Your advertisements will not appear on blocked IP addresses. Click protection in Google Performance Max is starting to save your advertising budget.