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Responsive Search Ads (RSA)

Définition

Responsive Search Ads (RSA) are Google Ads' standard search ad format where you provide up to 15 headlines and 4 descriptions. Google's AI automatically tests different combinations to find the best-performing variations for each search query, user context, and device. RSAs have replaced expanded text ads as the only creatable search ad type.

How Responsive Search Ads Work

You provide up to 15 headlines (30 characters each) and 4 descriptions (90 characters each). Google dynamically combines up to 3 headlines and 2 descriptions per ad impression, choosing the combination predicted to perform best for each specific search query and user. The system tests thousands of combinations and learns which perform best over time. You can pin specific headlines or descriptions to fixed positions to ensure certain messages always appear, though pinning reduces optimization flexibility.

RSA Best Practices

Write headlines that work independently since any 3 may be shown together. Include your primary keyword in at least 3-5 headlines. Vary your messaging: feature-focused, benefit-focused, urgency-driven, and trust-building headlines. Make each description a complete thought that works alone or paired with any description. Use all 15 headline slots and all 4 description slots to maximize the AI's testing capacity. Aim for 'Excellent' ad strength by providing diverse, relevant content. Only pin headlines when absolutely necessary for compliance or messaging requirements.

Understanding Ad Strength

Google rates RSA ad strength from 'Poor' to 'Excellent' based on the relevance, diversity, and volume of your assets. Ad strength is not a direct quality metric but a guide for providing better inputs to the optimization algorithm. 'Excellent' ad strength does not guarantee better performance, but it gives the AI more combinations to test. Focus on writing genuinely different headlines rather than minor variations of the same message. Include keywords naturally without keyword stuffing.

RSA Optimization with AdWhiz

AdWhiz analyzes your RSA performance at the asset level, identifying which headlines and descriptions earn the most impressions and conversions. The audit flags RSAs with low ad strength and provides specific suggestions for new headlines and descriptions. By correlating asset-level data with conversion outcomes, AdWhiz helps you understand which messaging angles resonate with your audience and which ones should be replaced.

Foire aux questions

Write all 15 headlines and all 4 descriptions to maximize the AI's ability to test combinations. Google's algorithm performs best with more options. Ensure each headline is meaningfully different, covering various angles like features, benefits, urgency, and social proof.

Only pin headlines when legally required or when specific messaging must always appear (like your brand name). Every pin restricts the AI's ability to optimize. If you must pin, use 2-3 headlines per position so the AI can still test variations within that slot.

Google Ads shows individual asset performance ratings (Low, Good, Best) but does not reveal specific combination-level data. You can see which headlines and descriptions earn the most impressions and identify top performers. Use this data to write more headlines in the style of your 'Best' performers.

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