Google's rating (poor to excellent) of a responsive search ad's asset diversity and relevance. Ad strength is a guide to whether the ad has enough distinct headlines and descriptions for Google to test, and it does not directly affect the auction.
Related terms
Cite this entry:
Agency Echelon. "Ad Strength." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/ad-strength/