What Are Google Ads Extensions

What Are Google Ads Extensions? Google Ads extensions (now officially called "Assets") are additional pieces of information you can add to your ads beyond the standard headlines and descriptions. Extensions appear below your main ad copy and can include links, phone numbers, addresses, additional text, prices, and more. Extensions make your ad larger, more informative, and more clickable. Google shows extensions when it predicts they will improve your ad's performance. Having extensions enabled increases your ad's real estate on the page significantly, often doubling the visual space your ad occupies. Figure 1: Google search result showing an ad with multiple extensions taking up double the space Types of Google Ads Extensions Figure 2: Google Ads Extensions/Assets menu showing all available extension types to add How Extensions Impact Ad Performance Extensions affect your campaigns in three key ways: 1. Higher Click-Through Rates More visual space = more attention. When your ad is twice as tall as competitors', it naturally attracts more eyes and clicks. Sitelinks alone can boost CTR by 20% or more. 2. Better Ad Rank Google factors in the "expected impact of extensions" as part of Ad Rank. Having relevant, properly configured extensions improves your Ad Rank independently of your bid or Quality Score. 3. Pre-Qualification of Clicks Extensions like price extensions or structured snippets help users self-qualify before clicking. If someone can see your prices are out of their budget, they won't click — saving you money on unqualified traffic. Setting Up Sitelink Extensions Sitelinks are the most impactful extension type. They appear as additional blue links below your main ad. Each sitelink requires a link text (25 characters) and an optional description (2 lines of 35 characters each). In Google Ads, navigate to Ads & Extensions → Extensions Click the blue + button and select "Sitelink Extension" Choose whether to apply at Account, Campaign, or Ad Group level Add at least 4 sitelinks (minimum for Google to show them on desktop) Link to your most valuable pages: Contact, Services, Pricing, About Figure 3: Sitelink extension creation form showing link text, description, and URL fields Setting Up Callout and Structured Snippet Extensions Callout Extensions Callouts are short (25-character) phrases highlighting your key value propositions. Examples: "Free Shipping," "No Setup Fees," "24/7 Support," "Award-Winning Service," "Family Owned Since 1985." Add 8-10 callouts so Google can select the most relevant ones for each search. Structured Snippets Structured snippets let you list specific aspects of your products or services using predefined header types: Amenities, Brands, Courses, Destinations, Featured hotels, Insurance coverage, Models, Neighborhoods, Service catalog, Shows, Styles, or Types. Setting Up Call and Location Extensions Call Extensions Add your phone number so users can call directly from the ad on mobile. This is especially valuable for local service businesses. Enable call reporting to track calls as conversions. Location Extensions Link your Google Business Profile to show your address, map, and distance from the user. This dramatically increases click-through rates for local businesses and directly drives foot traffic. Figure 4: Location extension showing business address and map pin below a Google Search ad Extension Best Practices Add extensions at Account level first, then customize at Campaign and Ad Group level for specificity Create at least 8-10 callouts so Google has options to test and rotate Include extensions with descriptions for sitelinks when possible — they take up more space Review extension performance in the Extensions report monthly and pause low performers Keep extension messaging consistent with your ad copy — mixed messages hurt conversion rates Conclusion & Key Takeaways Understanding What Are Google Ads Extensions? is essential for running successful Google Ads campaigns. Here are the most important things to remember: Extensions (Assets) make ads larger and more informative, boosting CTR by 10-20% on average Google factors in expected extension impact in the Ad Rank formula — always have extensions enabled Add at least: Sitelinks (4+), Callouts (8+), Structured Snippets, and Call/Location if applicable Set extensions at Account level for base coverage, customize at Campaign/Ad Group for specific relevance Sitelinks have the biggest CTR impact and should be prioritized first Enable call reporting on Call Extensions to track phone calls as conversions in Google Ads Last Updated: 2024 | Part of the Complete Google Ads Guide Series