Product Listing Ads (PLAs) play a crucial role in Google Shopping campaigns, helping businesses attract high-intent buyers. But unlike traditional Google Search Ads, PLAs don’t rely on manual keyword targeting. Instead, Google analyzes product feed data to determine when and where your ads appear.
So, how can you ensure your products rank for the right searches? The answer lies in strategic keyword optimization. This guide will help you choose and optimize the best keywords for PLAs, driving higher visibility, better conversions, and improved ROI.
1. Focus on High-Intent Keywords
When optimizing your product feed, prioritize keywords that indicate purchase intent. These keywords help Google match your ads with customers who are ready to buy.
Best High-Intent Keyword Examples:
✅ Buy Nike Air Zoom Pegasus 39
✅ Men’s running shoes size 10 sale
✅ Best deals on wireless headphones
Avoid generic or informational keywords like:
❌ What are the best running shoes?
❌ How to clean wireless headphones?
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2. Optimize Product Titles with Target Keywords
Your product title is one of the most important elements Google uses to determine PLA relevance. A well-structured title should include:
✔ Primary keywords (brand + product type)
✔ Attributes (color, size, material)
✔ Modifiers (best, sale, discount)
For example:
✅ Nike Air Zoom Pegasus 39 – Men’s Running Shoes, Black, Size 10
This structure improves search ranking and increases click-through rates (CTR).
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3. Use Long-Tail Keywords for Better Targeting
Long-tail keywords have lower competition and higher conversion rates. These keywords match specific user intent and improve ad performance.
Examples of Long-Tail Keywords for PLAs:
✅ Buy Samsung Galaxy Buds 2 Pro Noise Cancelling Earbuds
✅ Women’s lightweight hiking shoes size 7 waterproof
By integrating long-tail keywords into your product titles and descriptions, you can improve PLA targeting and reduce ad spend wastage.
4. Leverage Negative Keywords to Filter Irrelevant Traffic
Since Google Shopping automatically matches your products with searches, you need to use negative keywords to avoid irrelevant clicks.
Examples of Negative Keywords for PLAs:
🚫 Cheap (if you sell premium products)
🚫 Free (if you don’t offer free products)
🚫 DIY (if you sell finished products, not parts)
Adding negative keywords ensures your ads appear only for relevant, high-intent searches, improving conversion rates and ROI.
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5. Optimize Product Descriptions with Relevant Keywords
Your product description plays a key role in how Google categorizes your listing. It should be:
✔ Clear, engaging, and keyword-rich
✔ Detailed, highlighting key product features
✔ Structured with bullet points for readability
Optimized Product Description Example:
❌ Bad: “Great running shoes. Buy now.”
✅ Good: “Nike Air Zoom Pegasus 39 is a top-rated men’s running shoe with lightweight cushioning, breathable mesh upper, and responsive Zoom Air technology. Perfect for daily running and long-distance training.”
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6. Monitor and Adjust Keywords with Performance Data
Once your PLA campaign is running, regularly analyze performance metrics to refine your keyword strategy.
Key Metrics to Track:
📊 Impressions: Are your products appearing in search results?
📊 Click-Through Rate (CTR): Are users clicking on your ads?
📊 Conversion Rate: Are clicks turning into sales?
Use Google Merchant Center and Google Ads reports to identify underperforming keywords and make necessary adjustments.

Final Thoughts
Choosing the right PLA keywords is essential for driving more traffic, better conversions, and a higher return on investment (ROI).
✅ Use high-intent and long-tail keywords
✅ Optimize product titles and descriptions
✅ Leverage negative keywords to refine targeting
✅ Continuously track and improve keyword performance
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