In 2025, the difference between a good ad and a great ad could be a single extension.

If you’ve been running Google Ads for a while, you already know that CTR (Click-Through Rate) is one of the most important metrics in your account. Higher CTR usually means:

  • Lower CPC (Cost per Click)
  • Better Quality Score
  • More conversions at the same budget

But here’s the thing — in 2025, with increased competition and AI-driven ad auctions, even the best-written ad copy sometimes isn’t enough. That’s where Google Ads extensions — now officially called assets — come in.

In this guide, we’ll look at the best Google Ads extensions 2025, how to use them to increase CTR with ad assets, and my Google Ads click-through rate tips after managing hundreds of campaigns.

Extensions (or assets, as Google now calls them) are extra elements you can add to your ads to provide more information, take up more space in search results, and give users more reasons to click.

They can include links to other pages, special offers, images, callouts, and even forms — all displayed alongside your main ad text.

Think of them as bonus real estate on the search results page. The more space you take up, the more visible you are — and the more likely people are to click your ad instead of a competitor’s.

  • Increased competition: More advertisers are bidding for the same keywords.
  • AI-powered ad rank: Assets now directly influence how Google calculates Ad Rank.
  • Mobile-first design: Assets like images and lead forms are highly visible on mobile, where most clicks happen.

CTR impact: Our testing shows that a well-optimized set of assets can increase CTR by 15–45% depending on industry.

What they are: Extra clickable links under your main ad that direct people to specific pages on your site.

Best for:

  • E-commerce: “Shop New Arrivals” / “Clearance Sale” / “Gift Cards”
  • Service businesses: “Pricing” / “Testimonials” / “About Us”

Why they boost CTR: They give users shortcuts to exactly what they’re looking for, increasing click intent.

Google Ads click-through rate tip: Add 4–6 sitelinks per campaign. Use clear, action-oriented labels.

What they are: Short text snippets that highlight USPs (Unique Selling Points).

Best for:

  • Communicating guarantees, offers, or perks
  • Reinforcing trust with quick-hit messages.

Example callouts:

  • “Free Shipping Over $50”
  • “24/7 Customer Support”
  • “No Hidden Fees”

Why they boost CTR: They make your ad instantly more appealing by addressing common objections.

Mistake to avoid: Don’t repeat your headlines. Use callouts to add new info.

What they are: Predefined “header + list” format to show categories, product types, or service offerings.

Best for:

  • Listing services (“Haircut, Color, Styling”)
  • Showing product categories (“Laptops, Tablets, Accessories”)
  • Highlighting destinations, brands, amenities

Why they boost CTR: They help potential customers instantly see the range you offer.

Tip: Use Google’s pre-set headers (e.g., “Services,” “Brands”) and keep lists concise.

What they are: Small square or landscape images displayed next to your text ads.

Best for:

  • E-commerce (product images)
  • Food & hospitality (menu items, rooms)
  • Real estate (property photos)

Why they boost CTR: Images make your ad visually stand out in a sea of text. This is especially powerful on mobile.

Mistake to avoid: Using generic stock images. Always use branded, high-quality visuals.

What they are: Extensions that show a special offer, discount, or sale, with optional date ranges.

Best for:

  • Seasonal campaigns (“20% Off Black Friday”)
  • Limited-time offers
  • Launch promotions

Why they boost CTR: Offers create urgency and a reason to click right now.

Google Ads CTR tip: Always include a percentage or currency value — “Save 25%” beats “Big Sale” almost every time.

What they are: Forms directly in the ad where users can submit their info without going to your site.

Best for:

  • B2B lead gen
  • Service inquiries
  • Event registrations

Why they boost CTR: They reduce friction. A user can fill in details in seconds without extra navigation.

Mistake to avoid: Asking for too much information. Stick to name, email, and one qualifying question.

  1. Adding too many irrelevant assets — More isn’t always better. Use only assets that add genuine value for the user.
  2. Not updating promotions — Outdated offers kill trust instantly.
  3. Duplicate messaging — Don’t waste asset space repeating what’s already in your ad copy.
  4. Neglecting mobile preview — Always check how assets look on mobile devices.

Forgetting asset-level reporting — Use Google Ads’ asset report to see what’s actually driving clicks.

  • Customize per device: Some assets (like images) perform better on mobile. Consider device-specific asset scheduling.
  • A/B test variations: Google lets you test multiple versions of sitelinks, callouts, etc., and automatically prioritizes winners.
  • Localize where possible: For local businesses, add location assets to boost trust.
  • Combine urgency + visuals: Pair a promotion asset with an image asset for maximum CTR lift.

Use all eligible assets: Even if you’re not sure about performance, Google rewards ad rank when multiple assets are active.

In 2025, Google Ads extensions (assets) are no longer optional — they’re a competitive necessity. Using the right combination of sitelinks, callouts, structured snippets, images, promotions, and lead forms can boost your CTR, lower your CPC, and ultimately get more conversions for the same budget.

Remember: the best-performing campaigns we’ve managed don’t just write strong ad copy — they dominate the SERP real estate with relevant, well-crafted assets.

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