Responsive Search Ads replaced Expanded Text Ads as Google’s primary search ad format in 2022. The concept is straightforward: give Google up to 15 headlines and 4 descriptions, and its machine learning figures out the best combinations. In theory, this should automate performance. In practice, your results are only as good as the raw material you give it. Garbage in, mediocre performance out.
I’m going to show you how to write headlines that raise CTR, improve Quality Score, and generate more leads from the same ad spend.
The RSA Fundamentals (Quick Review)
- Up to 15 headlines, 30 characters each
- Up to 4 descriptions, 90 characters each
- Google shows 2-3 headlines and 1-2 descriptions per combination
- Headlines must work independently — they appear in any order
- Ad strength rating: Poor / Average / Good / Excellent
Important: Ad Strength is not the same as Ad Performance. Excellent strength means Google thinks you’ve provided diverse, complete assets. It does not mean your ads will convert well. I’ve seen Good-rated ads consistently beat Excellent-rated ones in conversion rate.
The 7 Types of Headlines Every RSA Needs
Type 1: Keyword-Inclusive Headlines
Always include at least 2-3 headlines that contain your primary keyword or a close variant. This serves message match and boosts Ad Relevance (a Quality Score component).
Example: “San Diego Google Ads Expert” | “Google Ads Management Services”
Type 2: Unique Value Proposition Headlines
What makes you different? Not just what you do, but why someone should choose you over the competitor in the next result.
Examples: “20+ Years in Paid Search” | “Manage 25+ Client Accounts” | “No Long-Term Contracts”
Type 3: Offer or Price Headlines
Specificity drives clicks. “Free Google Ads Audit” or “From $99/Month” outperforms vague positioning every time.
Examples: “Free 30-Min Ads Audit” | “Transparent Flat-Rate Pricing” | “New Patient Special — $49”
Type 4: Social Proof Headlines
Trust signals in the headline itself: reviews, client count, years in business, certifications.
Examples: “Rated 5 Stars on Google” | “Trusted by 500+ Businesses” | “Google Partner Agency”
Type 5: Problem-Agitation Headlines
Name the pain your customer is experiencing right now.
Examples: “Wasting Money on Google Ads?” | “Low Conversion Rate?” | “Not Showing on Google?”
Type 6: Benefit Headlines
Tell them what they get, not what you do.
Examples: “More Leads, Lower CPA” | “Full Inbox in 30 Days” | “Ads That Actually Convert”
Type 7: CTA Headlines
A direct next step. Sometimes the simplest instruction converts best.
Examples: “Get Your Free Audit Today” | “Call for a Free Consultation” | “Book Your Appointment Now”
What Not to Write
| Weak Headline | Why It Fails | Better Version |
|---|---|---|
| “Best Digital Marketing Agency” | Unverifiable, generic | “Google Partner Agency — San Diego” |
| “We Help Businesses Grow” | Vague, no specifics | “Google Ads That Drive Leads Daily” |
| “Click Here for More Info” | Weak CTA, no value | “Get Your Free Account Audit” |
| “Quality Service You Can Trust” | Empty claim | “5-Star Rated — 200+ Google Reviews” |
Pinning: When and How
Google lets you “pin” a headline to always appear in position 1, 2, or 3. Use this sparingly — pinning a headline reduces the number of combinations Google can test, which lowers your Ad Strength. But there are legitimate reasons:
- Pin a keyword-inclusive headline to Position 1 to ensure message match
- Pin a compliance-required disclosure to guarantee it always shows (especially for legal or medical)
- Pin your strongest-performing headline when you’ve found a clear winner
Don’t pin everything. If you pin all 15 headlines, you’ve effectively built an old Expanded Text Ad and removed all the RSA benefit.
Writing Headlines for Specific Industries
Med Spa
- “San Diego Botox — Licensed Injectors”
- “Lip Filler From $X | Book Today”
- “New Patient Specials Available”
- “Award-Winning Med Spa — Call Now”
Legal
- “Personal Injury Lawyer — San Diego”
- “No Fee Unless We Win Your Case”
- “Free Case Review — Available 24/7”
- “25 Years of Trial Experience”
Automotive
- “San Diego Auto Repair | Same Day”
- “Oil Change From $X — No Appointment”
- “ASE Certified Mechanics — Call Now”
- “12-Month Repair Warranty Included”
Testing Your RSAs: The Right Process
- Run 2 RSAs per ad group with different creative angles
- Wait for at least 300 impressions per ad before drawing conclusions
- Check the Combinations report (inside RSA Asset Details) to see which headline/description pairs are serving most
- Pause consistently low-performing individual headlines (rated “Low” in the asset performance column)
- Replace them with new variants based on what’s working
RSA optimization is iterative. The best accounts I manage are the ones where the advertiser never stops testing headline variants — even when results are already good. The goal is always to find the next 0.5% CTR improvement.
For more on the fundamentals of paid search copy, see my post on writing Google Ads copy that converts. And to see how RSA performance fits into the overall account picture, my Google Ads audit guide includes an ad copy review checklist.
Frequently Asked Questions
How many headlines should I write for a Responsive Search Ad?
Write all 15 headlines if possible. Google tests combinations and identifies best performers, but needs variety to do that effectively. Write headlines in 5 thematic groups: keyword-focused, benefit-focused, urgency-focused, local/trust-focused, and CTA-focused. Make sure your primary keyword appears in at least 3 headlines and that no two headlines are so similar that Google gets no real variety to test.
Should I pin headlines in Responsive Search Ads?
Pin sparingly. Pinning prevents Google from testing combinations freely, reducing RSA efficiency gains. I recommend pinning only position 1 with your most critical keyword or brand message if compliance requires consistent messaging. For most campaigns, leave headlines unpinned. The exception: regulated industries like legal or healthcare where specific disclaimers must always appear regardless of which combination Google selects.
What’s the ideal headline length for Google Ads?
Google allows up to 30 characters per headline. Aim for 25-28 characters to avoid truncation on mobile. Front-load the most important information. Include your primary keyword in at least 3 headlines. Test both short punchy headlines (12-15 chars) and full 28-30 character headlines. Short headlines often have higher CTR on mobile where screen real estate is limited.
How do I identify which RSA combinations are winning?
In the RSA editor, Google shows each asset’s performance label: Best, Good, Low, or Unrated. Assets labeled ‘Low’ should be replaced. Navigate to your ad, click into the RSA, and view ‘Asset details.’ You can also view ‘Combinations’ reporting to see which headline-description pairings Google is serving most. Replace Low-rated assets first — swapping one weak headline can lift overall ad performance within 2-3 weeks.
How often should I update Responsive Search Ad copy?
Review RSA asset performance monthly. Replace ‘Low’ rated assets as soon as they’ve accumulated enough impressions to be rated. Don’t overhaul all assets at once — make incremental changes so you can attribute performance shifts to specific copy changes. A complete RSA overwrite resets the learning period and loses all historical combination data. Treat RSA optimization as ongoing iteration, not a one-time setup.
Looking for more Google Ads strategies? Read my guide on Writing Google Ads Copy That Converts, explore my Google Ads management services, or get in touch to talk through your account. I manage paid search for 15+ active clients across San Diego.
