What Are Google Ads Extensions and Which Should I Use?
What Are Google Ads Extensions and Which Should I Use?
Google Ads extensions (now called “assets”) add extra information to your Search ads — phone numbers, links, locations, prices, and more. Extensions increase ad real estate in search results and CTR by 10–15% on average at no additional cost. Sitelink, callout, and structured snippet assets are essential for every Search campaign and directly contribute to Ad Rank calculations.
What Types of Extensions Are Available?
| Extension Type | What It Shows | Impact on CTR | Priority |
|---|---|---|---|
| Sitelinks | Additional page links below ad | +10–20% | Essential |
| Callouts | Short benefit highlights (25 chars) | +5–10% | Essential |
| Structured snippets | Categorized feature lists | +5–10% | Essential |
| Call | Phone number, click-to-call | +5–8% | High (if calls matter) |
| Location | Address and map link | +5–10% | High (if local) |
| Price | Product/service pricing | +8–12% | High (for e-commerce) |
| Promotion | Special offers and discounts | +10–15% | High (seasonal) |
| Lead form | In-ad form submission | +5–8% | Medium (for lead gen) |
| Image | Visual thumbnail next to ad | +10–15% | High (when eligible) |
Extensions are free — there is no additional cost per click when someone clicks an extension versus the main ad headline. Google selects which extensions to show based on predicted impact.
Which Extensions Should Every Campaign Have?
Every Search campaign should have at minimum: 4+ sitelinks pointing to your most important pages (pricing, features, about, contact), 4+ callouts highlighting key benefits and differentiators (“Free Trial,” “24/7 Support,” “No Credit Card Required”), and 2+ structured snippet headers with relevant values (Services: “Campaign Management, Creative Generation, Analytics, Reporting”). These three extension types are table stakes — ads without them lose significant real estate to competitors who use them.
How Do Extensions Affect Ad Rank?
Google includes extension quality in Ad Rank calculations. Even if two advertisers have the same bid and Quality Score, the advertiser with better extensions may win a higher position. Google selects extensions expected to improve performance — if your sitelinks are relevant and well-written, they are more likely to appear, increasing your ad’s visibility. Conversely, poorly written or irrelevant extensions may not be shown and do not help your Ad Rank.
How Should I Write Effective Sitelinks?
Each sitelink should point to a unique, relevant page with its own distinct value proposition. Use action-oriented text: “View Pricing Plans” beats “Pricing,” “Start Free Trial” beats “Sign Up,” “Read Customer Stories” beats “Testimonials.” Include 2 description lines per sitelink (35 characters each) — these increase real estate when shown. Create 8–10 sitelinks per campaign and let Google rotate the best performers. Match sitelink text to landing page content — sitelinks with high bounce rates after click are penalized.
When Should I Use Specialized Extensions?
Call extensions: essential if phone calls are a conversion action (services, local businesses, high-touch sales). Location extensions: essential for businesses with physical locations. Price extensions: powerful for e-commerce and service businesses with clear pricing tiers. Promotion extensions: use during sales, holidays, and special offers. Image extensions: add visual thumbnails that increase CTR by 10–15% when eligible (not all accounts qualify). Lead form extensions: useful for B2B lead generation directly within the ad, though quality is typically lower than landing page forms.
How Do I Optimize Extensions Over Time?
Review extension performance monthly in the “Assets” report. Replace low-performing sitelinks (low CTR relative to others) with new options. Update callouts when your value proposition changes. Refresh promotion extensions seasonally. Test different structured snippet categories to find which resonates with your audience. Extensions with strong performance data improve your overall Ad Rank, creating a compounding benefit. Leo monitors extension performance across Google Ads campaigns and recommends optimizations based on cross-campaign and cross-platform insights.