Responsive Search Ads (RSAs)
Ads that let you provide multiple headlines and descriptions, which Google automatically mixes and tests.
Definition
Responsive Search Ads (RSAs) are the standard ad format for Google Search campaigns. You provide up to 15 headlines and 4 descriptions, and Google's AI tests different combinations to find which ones perform best for different queries and users. RSAs replaced Expanded Text Ads in 2022 as the primary search ad format.
The Practitioner's Perspective
RSAs work by serving different headline-description combinations to different users and measuring performance. Over time, Google identifies which combinations produce the highest CTR and conversion rates for different search contexts. The 'Ad Strength' score (Poor / Good / Excellent) provides feedback on whether your asset variety is sufficient for the system to find winning combinations.
Best practices for healthcare RSA creation: write headlines that vary by theme (procedure name, benefit, CTA, location, pricing, trust signal), don't write headlines that only make sense in one order since they'll be mixed randomly, include your highest-performing message as a Pinned headline to ensure it always appears, and make each headline independently meaningful rather than relying on adjacent headlines for context.
One of RSA's most powerful features for healthcare is how it adapts to search intent. A user searching 'affordable rhinoplasty' might see a headline about financing options, while a user searching 'best rhinoplasty surgeon NYC' sees a headline about board certification and credentials — even within the same ad group. This relevance-at-scale is impossible to achieve manually with static ads.
Frequently Asked Questions
How many headlines should I write for an RSA?
Aim for 10–15 headlines to give Google maximum combinations to test. Write headlines across different themes: the procedure name, your USP, location, social proof, CTA, pricing/financing, and urgency. Variety is essential for the algorithm to find winning combinations.
Should I pin headlines in RSAs?
Pin sparingly — only pin if there's a specific message that must always appear (like a legal disclaimer or a core differentiator). Pinning too many headlines reduces the number of combinations Google can test, potentially hurting performance.
What is a good Ad Strength for RSAs?
'Good' or 'Excellent' Ad Strength indicates sufficient asset variety. 'Poor' typically means too many similar headlines or not enough options. Ad Strength correlates loosely with performance but isn't a direct quality metric — focus on actual CTR and conversion data.
Related Terms
Put the theory into practice
VortiHQ manages Google Ads for healthcare and aesthetics practices on a performance-based model — you pay us when you close patients, not just when they click.