Google Ads Quality Score is a 0-10 rating given to advertisers for every keyword they are bidding on with Google Ads. Quality Score measures Ad Quality and uses variables such as Expected clickthrough rate (CTR), Ad relevance, and Landing page experience. Why Is Quality Score Important? While Quality Score is not used in the ad auction, it can help advertisers understand how to improve their campaigns. Any time you have an “Average” or “Below average” rating for one of the quality score factors, that's somewhere to improve. Quality Score Quotes from Google Ads: "Quality Score is not a key performance indicator and should not be optimized or aggregated with the rest of your data." "Quality Score is not an input in the ad auction. It’s a diagnostic tool to identify how ads that show for certain keywords affect the user experience."
What is Quality Score? Google Ads Quality Score Explained For Beginners