Expanded Text Ads (ETAs) allow advertisers to manually create three headlines and two descriptions, offering control but limited flexibility. In contrast, Responsive Search Ads (RSAs) leverage Google’s machine learning to mix and match multiple headlines and descriptions dynamically, optimizing for better performance based on user behavior and context.
Studies show RSAs generate more conversions than ETAs, although conversion rates can vary. Google encourages transitioning from ETAs to RSAs to enhance results, recommending smart bidding strategies and continuous testing for better outcomes.
Learn more about best practices at Google Ads.
