Google Ads Ad Strength Explained: Does It Really Matter?

When you’re creating responsive search ads in Google Ads, you’ll notice a live quality indicator called Ad Strength. This rating measures the variety and relevance of your headlines and descriptions in real time.

But here’s the big question: does Google Ad Strength really matter, or is it just another vanity metric?

Let’s break down what this score means, how it’s calculated, ways to improve it, and – most importantly – whether it has a true impact on performance.

What Is Ad Strength in Google Ads?

Ad Strength is Google’s built-in feedback system that evaluates your ad copy and assigns a label of:

• Poor
• Average
• Good
• Excellent

Advertisers often get frustrated when they spend time on ad copy but still see a “poor” or “limited” rating. So, what factors actually influence this score?

What Impacts the Score?

Google looks at four main elements when assigning your rating:

1. Number of Headlines and Descriptions
   • Up to 15 headlines and 4 descriptions are allowed.
   • More variety can help – but only if the copy is strong.
2. Uniqueness of Messaging
   • Repeating the same benefit in different ways won’t help.
   • Instead, highlight different selling points to keep ads varied.
3. Pinning Content
   • Pinning headlines/descriptions reduces flexibility.
   • Google tends to lower your rating if too much content is pinned.
4. Keyword Relevance
   • Ads perform better when targeted keywords appear in the copy.
   • For example, if bidding on “custom acrylic signs,” that phrase should show in a headline or description.

These factors explain why you might see warnings like “impressions limited due to ad rating” when launching a campaign.

Does This Score Impact Performance?

Google claims that improving from “poor” to “excellent” can increase conversions by up to 12%.

But independent research paints a different picture. PPC software company Optimizer analyzed over 1 million ads and compared conversion rate, return on ad spend (ROAS), and click-through rate (CTR) across different rating levels.

Key Takeaways:

• ROAS: Ads rated poor actually outperformed excellent in some cases.
• Conversion Rate: Nearly identical across poor (6.98%) and excellent (6.95%).
• CTR: Higher for excellent (8.28% vs. 7.88%), suggesting better visibility, but not necessarily better ROI.

Bottom line: a low score doesn’t always equal poor results.

Pinning vs. Not Pinning

Another factor is whether you pin your ad copy. Google discourages it because it can reduce variety.

But Optimizer’s study revealed:

• Some pinning led to the highest ROAS (224%).
• All pinned still performed well (200%).
• No pinning gave the weakest ROAS (177%).

This shows that pinning can actually improve outcomes, depending on your strategy.

Should You Worry About Your Score?

Here’s the reality:

✅ Do pay attention to the basics

• Use relevant keywords.
• Mix unique headlines and descriptions.
• Aim for variety without filler.

❌ Don’t obsess over “Excellent”

• A “poor” or “low” rating doesn’t mean your campaign will fail.
• Conversion data and ROI matter more than Google’s label.

Think of the score as a guideline, not a rule.

Practical Tips to Improve Without Overthinking

• Aim for 8-10 strong headlines with varied messaging.
• Naturally include keywords but avoid repetition.
• Test ads with pinned vs. unpinned content.
• Measure conversions and ROAS directly, not just the rating.

Final Thoughts

So, does Ad Strength matter?

Not as much as Google suggests. While improving it can help boost CTR, it doesn’t guarantee more conversions or revenue.

If you see “poor” or “low” ad quality feedback, don’t panic. Use it as guidance to refine your copy – but always let real performance data guide your decisions.

Pro tip: Run experiments with different ad copy structures, then compare conversion data. That will tell you far more than the label Google assigns.

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