Quick answer: Open Google Ads, create a Search campaign, add keywords, write 3–15 headlines and 2–4 descriptions, set a daily budget, and publish. Google's AI tests your copy combinations and shows the best-performing ones automatically.
What Is a Google Search Ad?
Google Search ads reach people the moment they search for what you sell. You only pay when someone clicks.
How search ads appear in Google results
Search ads appear above and below organic results. They're labeled "Sponsored." Each ad displays a headline, a display URL, and a description. Placement depends on your bid and quality score.
Responsive search ads vs. expanded text ads
Responsive search ads (RSAs) are the current standard format. You write multiple headlines and descriptions. Google's AI tests combinations and promotes the ones that perform best.
Expanded text ads are no longer supported for new campaigns. Build RSAs from the start.
When searchers see your ad
Your ad shows when a searcher's query matches your keywords. Bid more competitively and write relevant copy to win more placements at lower cost.
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Step-by-Step: How to Create a Google Search Ad
Step 1: Set up your Google Ads account and campaign
Go to ads.google.com and sign in or create a free account. Click "New campaign." Select "Search" as the campaign type. Choose a campaign goal, such as website traffic, leads, or sales.
Step 2: Choose keywords and match type
Add keywords that describe your product or service. Per Google's Ads Help Center, broad match is the default match type and the recommended starting point for most campaigns. It gives Google's AI the widest pool of relevant searches to target. Use phrase or exact match when you need tighter control.
Step 3: Write headlines (3–15)
You need at least 3 headlines. You can write up to 15. Each headline caps at 30 characters. Per Google Ads documentation on responsive search ads, more headlines give Google's AI more combinations to test. Write a variety. Include your primary keyword in at least one headline. Include a benefit or offer in another.
Step 4: Write descriptions (2–4)
Write at least 2 descriptions. Up to 4 are allowed. Each description supports up to 90 characters. Use them to explain your offer, highlight proof points, and close with a clear call to action.
Step 5: Set budget and bidding
Set a daily budget you're comfortable spending. Google recommends pairing broad match keywords with Smart Bidding. Smart Bidding uses machine learning to automatically set bids against your chosen performance goal, whether that's conversions, clicks, or target ROAS.
Step 6: Launch and monitor
Preview your ad before publishing. Check the Ad Strength indicator and aim for "Good" or "Excellent." Publish when ready. Track impressions, clicks, and conversions in the Google Ads dashboard. Adjust copy, bids, and keywords based on early data.
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Google Search Ad Best Practices
Getting the specs right is table stakes. These habits separate average ads from strong ones.
Headline requirements: 30 characters max, 3 minimum
Every headline must be 30 characters or fewer. Write closer to 10–15 headlines to give Google's AI real options to work with.
Description requirements: 90 characters max, 2 minimum
Descriptions allow up to 90 characters each. Use all four slots. More options mean better AI optimization.
Use keywords in your headlines when possible
Matching the searcher's query in your headline signals relevance. It improves Quality Score and can lower your cost per click.
Include offers or promotions in ad copy
Specific wins over generic. "Free shipping on orders over $50" outperforms "Shop our store."
Let Google's AI test combinations (RSA advantage)
Per Google Ads best practices documentation, each ad group should have at least one RSA rated "Good" or "Excellent" for Ad Strength. More headline and description variety gives the AI more signal to work with.
Broad match + Smart Bidding for modern campaigns
Google's guidance recommends combining broad match keywords, Smart Bidding, and RSAs. This trio lets Google's AI find high-intent searches you'd miss with narrow match types alone.
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Speed Up Search Ad Copywriting with Coinis
Writing 15 headlines and 4 descriptions per ad group adds up fast. Coinis AI Copywriting cuts that time significantly.
AI Copywriting generates headlines and descriptions at scale
Enter your product or service details. Coinis generates platform-ready headlines and descriptions. Formatted to Google's character limits. Ready to paste directly into Google Ads.
Brand Profile learns your voice across all campaigns
Brand Profile analyzes your brand and stores your tone, messaging, and key differentiators. Every batch of headlines stays on-brand without extra instruction.
Create multiple variations to test faster
Generate several copy sets in one session. Test different angles, hooks, and offers. Refresh underperforming ad groups in minutes.
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Next Steps: Launch Your Search Campaign
Use Campaign Launcher to publish (Meta today, Google roadmap)
Coinis Campaign Launcher publishes directly to Facebook and Instagram today. Google Ads direct publishing is on the roadmap. For now, export your AI-generated copy from Coinis and paste it into Google Ads Campaigns.
Monitor performance in Google Ads native dashboard
Watch impressions, clicks, and conversion rates after launch. Use that data to identify weak headlines. Coinis AI Copywriting makes refreshing copy fast.
A/B test variations using Coinis Revise
Use Coinis Revise's AI Rewrite ad copy capability to rewrite existing copy from a new angle. One click generates a fresh variation ready to test.
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Or let Coinis do it.
From a product URL to a live Meta campaign. AI-generated creatives. On-brand copy. Direct publish to Facebook and Instagram. Real performance reporting. All in one platform.
Start free. Upgrade when you're ready.
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Frequently Asked Questions
How many headlines does a Google Search ad need?
Responsive search ads require a minimum of 3 headlines. You can write up to 15. Each headline is limited to 30 characters. More headlines give Google's AI more combinations to test, which typically improves performance.
What is the character limit for Google Search ad descriptions?
Each description in a responsive search ad allows up to 90 characters. You need at least 2 descriptions and can write up to 4. Using all four slots gives Google's AI the most options to optimize with.
What keyword match type should I use for a new Google Search campaign?
Broad match is Google's default and recommended starting point for most campaigns. Paired with Smart Bidding, broad match lets Google's AI find relevant searches you might miss with narrower match types. Switch to phrase or exact match when you need tighter targeting.
Can Coinis publish ads directly to Google Ads?
Not yet. Coinis currently publishes directly to Facebook and Instagram. Google Ads direct publishing is on the roadmap. Today, use Coinis AI Copywriting to generate headlines and descriptions, then paste them into Google Ads.