Quality Score
Quality Score is a Google Ads metric that rates the quality of your ads on a scale from 1 to 10. It’s based on three factors: your expected Click-Through Rate (CTR), how relevant your ad is to the keyword, and the landing page experience. Google Ads works each of these out by comparing your ad against other advertisers’ ads for the same keyword.
A higher Quality Score can lower your Cost Per Click (CPC) and help your ad appear in a better position. A low score signals that one of the three factors needs work, so Quality Score is most useful as a diagnostic for what to improve.
See also: Cost-Per-Click (CPC), Return on Ad Spend (RoAS)
Read more: Google Ads vs SEO: Which is Right for Your Business?