Short answer: A responsive search ad is a Google Search ad built from several headlines and descriptions that Google Ads combines and tests. Write headlines that make sense alone and in any order, include your keywords, end with a specific action and pin only the text that must always show.
What a responsive search ad is
Responsive search ads let you create an ad that adapts to show more relevant messages, Google says. You enter several headlines and descriptions, and over time Google Ads tests different combinations and learns which perform best.
In any given ad, at least one headline and one description are selected, in different combinations and orders. The ad can show up to 3 headlines in the headline position.
How many headlines and how long
| Field | How many | Characters each |
|---|---|---|
| Headlines | 3 to 15 | Up to 30 |
| Descriptions | 2 to 4 | Up to 90 |
| Display path | 2 fields | Up to 15 |
From Google Ads Help, read November 5, 2026.
The more headlines and descriptions you enter, the more chances Google Ads has to match what people search for. Google says the text you enter in the Headline 1 and Description 1 fields usually appears whenever the ad runs. The rest shows when it is predicted to perform best.
How to write the headlines
Headlines and descriptions can appear in any order, so each one has to make sense on its own and next to the others. Google suggests writing the first 3 headlines as if they will appear together.
Include at least one of your keywords in your headlines, and write as many unique headlines as you can. Google’s ideas are a product or service benefit, a problem you solve and a different call to action. It also suggests headlines of varying lengths.
For a local plumber, for example, one headline could name the service and the city, another the benefit and another the action. Each still reads well alone.
Descriptions and the call to action
Google’s advice for the ad copy is to focus on what the user gains and to avoid generic language. Specific calls to action tell people clearly what to do next; for wording ideas, see our call to action guide.
Match the ad to the page it sends people to. If an offer or a product in the ad isn’t on the page, Google warns that people may leave. What that page needs is in our landing page guide.
When to pin a headline
Pinning fixes a headline or description to one position. Text pinned to Headline 1, Headline 2 or Description 1 always shows, while text pinned to Headline 3 or Description 2 may not show in every ad.
Because pinning reduces the headlines and descriptions that can match a search, Google doesn’t recommend it for most advertisers, and it can affect Ad Strength. When you need it, Google suggests pinning 2 or 3 unique options to the same position.
Ad Strength
Ad Strength rates the potential effectiveness of the ad, from Incomplete through Poor, Average and Good to Excellent, and lists the actions that would improve it. It doesn’t directly influence whether the ad is eligible to serve.
Google’s best practice is at least 2 responsive search ads with Good or Excellent Ad Strength in each ad group, each with its own final URL. Ad Strength is not the same as Quality Score; the difference is explained in our Quality Score guide.
How to write a responsive search ad
- Put your main keyword in at least one headline, and the service and the city in another.
- Write the first 3 headlines as if they will show together.
- Add more unique headlines: benefits, the problem you solve and a specific action.
- Write 2 to 4 descriptions that explain the benefit and end with a clear next step.
- Fill the two display path fields with words that describe the page.
- Pin only the text that must always show, with 2 or 3 options per pinned position.
- Check Ad Strength and aim for Good or Excellent, with at least 2 ads per ad group.
Before you publish
- Every headline makes sense on its own and next to any other.
- At least one headline includes your keyword.
- Headlines stay within 30 characters and descriptions within 90.
- The call to action says exactly what to do next.
- Offers in the ad also appear on the landing page.
- Nothing is pinned unless it must show in every ad.
RememberGive Google many good pieces, not one fixed ad: unique headlines, clear descriptions and as little pinning as you can.
Our Google Ads service writes and tests search ads in accounts that stay in your name, in English and Spanish. Write to us through the form or on WhatsApp. For the same work on Meta, see our Facebook ad copy guide.
Quick answers about responsive search ads
How many headlines does a responsive search ad need?
At least 3 and up to 15, plus 2 to 4 descriptions. Google says more headlines give Google Ads more options to assemble relevant ads, so write as many unique ones as you can.
How long can the headlines and descriptions be?
Headlines take up to 30 characters, descriptions up to 90 each and the two display path fields up to 15 each. Characters in Korean, Japanese or Chinese count double.
Should I pin my headlines?
Only text that must show in every ad, such as a legal line. Google doesn’t recommend pinning for most advertisers, because it reduces the combinations that can match a search. If you pin, put 2 or 3 options in that position.
Does Ad Strength decide whether my ad shows?
No. Google says the rating doesn’t directly influence serving eligibility. It goes from Incomplete to Excellent and comes with action items, so use it as a checklist while you write.
Which headline shows first?
Usually the text in Headline 1 and Description 1 appears whenever the ad runs. The second and third headlines and the second description show when Google predicts they will perform best or when there is room.
Sources
All read on November 5, 2026, in Google Ads Help. About responsive search ads. Best practices for creating effective responsive search ads. About Ad Strength for responsive search ads.