A GOOGLE ADS TARGETING TACTIC THAT CUT INVALID CLICKS BY 50%

Summary from the TLDR Marketing newsletter

Use Google Ads audience targeting as a filter to reduce invalid clicks when click fraud is hurting your campaign performance. One account cut its invalid click rate by 50% after adding hundreds of Google predefined audiences and setting them to Targeting instead of Observation. The approach limits ads to users who match both keywords and Google's audience signals. It works best for accounts with unusually high invalid click rates because it can also exclude legitimate users who do not fit Google's predefined audiences.