Are Responsive Search Ads Better Than Expanded?

In the evolving world of digital advertising, staying up-to-date with Google Ads formats is vital for successful campaigns. Since Google introduced Responsive Search Ads (RSAs) and subsequently phased out Expanded Text Ads (ETAs), many small business owners and advertisers are questioning which format yields better results and how to adapt strategies for the best possible return on investment. This in-depth post will explore the differences between Responsive Search Ads and Expanded Text Ads, the pros and cons of each, performance considerations, and practical guidance for navigating these changes.

Understanding the Basics: RSAs and ETAs

What are Expanded Text Ads (ETAs)?

Expanded Text Ads were, for several years, the standard text ad format in Google Ads. ETAs allowed advertisers to write up to three headlines and two descriptions, with strictly defined character limits. Each ad appeared exactly as written, giving businesses direct control over the combination and order of their ad copy.

• Control: Every aspect of the headline and description was set by the advertiser.
• Predictability: Ads always appeared in the exact structure and sequence intended.
• Phase-out: As of June 2022, Google stopped allowing the creation or editing of ETAs, but existing ones continue to serve.

What are Responsive Search Ads (RSAs)?

Responsive Search Ads are Google’s next-generation search ad format. Instead of creating static versions, advertisers provide up to 15 headlines and 4 descriptions. Google’s machine learning then tests different combinations to assemble the best-performing ad variation for each search.

• Flexibility: Google dynamically combines headlines and descriptions to optimise for performance.
• Automation: Relies on machine learning to decide which message displays for a given search query, device, or user context.
• Ongoing evolution: RSAs are now the default and recommended format for most search ad campaigns.

Comparing RSAs and ETAs: Key Differences

While both formats aim to deliver relevant advertising messaging, their core differences significantly impact campaign management and outcomes.

• Ad Creation:
  • ETA: Requires manual input of a fixed set of headlines and descriptions. Each ad’s appearance is set in advance.
  • RSA: Offers the advertiser creative freedom to list multiple headlines and descriptions, leaving it to Google’s system to generate the combinations.
• Control vs. Automation:
  • ETA: Full control over what appears in each ad, ensuring precise compliance with branding or messaging requirements.
  • RSA: Less direct control, as Google’s algorithms determine which text combinations show for each impression.
• Testing & Optimisation:
  • ETA: A/B testing was typically manual. Advertisers often ran multiple ad variations to see what worked.
  • RSA: Google automatically tests thousands of combinations, optimising for clicks or conversions using machine learning.
• Performance Data:
  • ETA: Performance is tracked at the ad level, making it easy to compare specific messaging changes.
  • RSA: Performance data is aggregated, with less transparency about which combinations are working best.
• Ad Variety and Reach:
  • ETA: Limited by the number of ads you individually create.
  • RSA: Capable of creating thousands of permutations — increasing the odds of matching the exact query and intent of a wider audience.

Evaluating Performance: Are RSAs Actually Better?

Since the introduction of RSAs, Google has cited improved click-through rates and greater relevance. But is this universally true for all businesses? The answer depends on several factors: campaign goals, industry, audience, and how the ads are implemented. Let’s outline the performance considerations:

Potential Advantages of RSAs

• Improved Efficiency:

  By automating the testing process, RSAs can save significant time for advertisers who previously relied on manual ad version management.

• Enhanced Ad Relevance:

  RSAs dynamically assemble content that can better match individual user queries, potentially improving both Quality Score and relevance. This, in turn, can result in more competitive ad positions at lower costs.

• Wider Reach:

  With so many headline and description combinations, RSAs are eligible to enter a greater number of auctions.

• Machine Learning Optimisation:

  Google’s algorithms learn which messaging resonates with different audiences and adapt accordingly without waiting for manual intervention.

Potential Drawbacks of RSAs

• Less Granular Control:

  Advertisers no longer know exactly which combinations of their headlines and descriptions will display. This can be problematic when compliance, regulatory, or strict branding requirements are involved.

• Less Detailed Reporting:

  Google provides limited transparency into which combinations perform best. Advertisers see which assets are “learning,” “low,” or “best,” but not precise data for each permutation.

• Message Dilution:

  Poorly written or mismatched headlines and descriptions can combine in confusing ways if not carefully crafted. As a result, well-thought-out copywriting is more important than ever to maintain a clear and compelling brand message.

• Learning Period:

  Performance may fluctuate as Google tests different combinations. Patience and sufficient data volume are required before you can accurately evaluate results.

Real-World Results: What Are Advertisers Seeing?

The consensus from agencies, consultants, and Google’s own research generally supports that RSAs, when well-constructed, deliver higher click-through rates than ETAs. Some advertisers also see modest improvements in conversion rates and lower cost per acquisition.

However, there are notable exceptions — especially in highly regulated or specialist industries where specific wording is critical, or where brand consistency must be tightly controlled. In these cases, the unpredictable combinations of RSAs can be challenging.

Here are a few real-world patterns:

• Accounts with high variety: Campaigns with broad targeting and varied search intent tend to benefit the most from RSAs, as Google can tailor messaging more effectively to the individual user’s query.
• Accounts with narrow audiences: In tightly focused markets, ETAs (or carefully “pinned” RSAs) may perform similarly because messaging requirements are more specific and less variable.
• Learning curve required: Advertisers often need to update creative assets and revise their approach to get the most from RSAs, as what worked for ETAs may not be optimal in a more dynamic context.

Should You Still Use ETAs?

Although you can no longer create or edit Expanded Text Ads, existing ETAs in your account may still be delivering results. It’s wise to keep well-performing ETAs active as long as possible, especially if they deliver predictable conversions or serve compliance needs.

However, Google’s increasing prioritisation of RSAs in ad auctions means that an RSA-only approach will soon be necessary. Continuing to rely solely on ETAs risks lowered impression share and missed opportunities.

Best Practices for Responsive Search Ads

As RSAs become the norm, small business owners and marketers should focus on strategies designed to maximise their effectiveness while mitigating weaknesses. Here are some practical tips:

• Diversify Headlines and Descriptions:

  Write as many unique, relevant, and clear headlines and descriptions as possible. Avoid redundancy — Google will only show a limited number of combinations, so maximise variety to reach different intent.

• Include Key Messaging and Keywords:

  Make sure each major selling point, offer, or keyword is represented in your assets. Use the language your customers use when searching.

• Use Pinning Sparingly:

  You can “pin” assets to specific positions (e.g., always show Brand name in headline 1) to maintain compliance or consistency. However, over-pinning limits machine learning’s effectiveness, and may reduce performance.

• Review Asset Performance:

  Check Google’s asset performance ratings and replace underperforming variations to continuously improve results.

• Monitor Results and Be Patient:

  Allow enough time and data before drawing conclusions. Google’s optimisation processes require a learning phase to reach top performance.

Conclusion: Are RSAs Better Than ETAs?

Responsive Search Ads offer more flexibility, automation, and dynamic optimisation than the now-outdated Expanded Text Ads. For many advertisers, this translates to higher click-through rates and better overall efficiency. However, this comes at the cost of direct message control and clarity on specific copy performance.

If you’re a small business owner pivoting to RSAs, success will depend on providing well-written, diverse assets and staying vigilant with account management. While Google’s algorithms are powerful, they still need quality input and review. In sensitive or highly regulated sectors, continue to monitor how responsive ad combinations might affect your brand or compliance needs.

Ultimately, the shift from ETAs to RSAs isn’t a question of “better or worse,” but of adapting to a new era in search advertising. Embracing RSAs — while understanding and addressing their weaknesses — will be key to future success.

If you need help with your website, app, or digital marketing — get in touch today at info@webmatter.co.uk or call 07546 289 419.