Additional pieces of information you can add to your Google Ads that make them larger, more useful, and more likely to be clicked.
What are ad extensions (assets) in Google Ads? Ad extensions (now called assets) are additional pieces of information you add to ads—like sitelinks, phone numbers, locations, and callouts. They make ads larger and more useful, increasing CTR by 20-30% at no extra cost beyond the clicks they generate.
Ad Extensions (now officially called "Assets" in Google Ads) are content pieces that expand your ad with useful business information including links to specific pages, call buttons, location details, pricing, reviews, and more. According to Google, assets "make your ad larger and more robust, giving people more reasons to take action directly from your ads." When someone searches and your ad appears, Google may show one or more of your assets alongside the ad text, increasing the ad's size, visibility, and usefulness. For example, a standard text ad shows headline + description; with assets, the same ad might show headline + description + 4 sitelinks + 3 callouts + phone number + location—occupying 3-4x more screen space.
Google offers dozens of asset types organized into categories: (1) Sitelink Assets—links to specific pages like "Pricing," "Free Trial," "Customer Reviews"; (2) Callout Assets—short, non-clickable text highlighting benefits like "24/7 Support" or "Free Shipping"; (3) Structured Snippet Assets—lists of products, services, or features like "Services: SEO, PPC, Social Media"; (4) Call Assets—phone numbers that turn into clickable call buttons on mobile; (5) Location Assets—displays store addresses and directions; (6) Price Assets—showcase products with prices; (7) Image Assets—visual content to make ads stand out. The three core assets recommended for every campaign are sitelinks, callouts, and structured snippets—together, these can increase CTR by 20-30%.
As of 2025-2026, Google has shifted toward automated asset generation and reporting. Account-level automated assets are created automatically based on your website content and shown when predicted to improve performance. Asset-level reporting now shows impressions, clicks, conversions, and cost for each individual asset, making it possible to identify which sitelinks or callouts drive the most engagement. The trend is clear: assets aren't optional add-ons—they're essential components of high-performing ads. Ads with 4+ asset types consistently outperform ads with 0-1 asset types by 25-40% in CTR and conversion rate.
Official Source: Definition verified from Google Ads Help Center (Last verified: January 2026)
"Assets make your ad larger and more robust, giving people more reasons to take action directly from your ads."
A cloud storage company runs Search campaigns for "cloud storage for business." Initially they use no extensions. After adding assets strategically, they measure the impact on CTR, Quality Score, and CPC.
Baseline Performance (No Extensions): - Ad: "Secure Cloud Storage | 30-Day Free Trial | [CompanyName]" - Description: "Enterprise-grade cloud storage with 99.9% uptime. Store, sync, share files securely." - Ad Rank: 8/15 (middle of page) - CTR: 2.8% - Avg CPC: $6.40 - Quality Score: 6/10 After Adding Extensions (Week 1): Added 3 core asset types: Sitelinks (4 total): 1. "Start Free 30-Day Trial" → /free-trial 2. "See Storage Plans & Pricing" → /pricing 3. "Read Customer Reviews" → /reviews 4. "View Security Features" → /security Callouts (6 total): - "99.9% Uptime Guarantee" - "256-Bit Encryption" - "24/7 Customer Support" - "No Credit Card Required" - "Cancel Anytime" - "SOC 2 Certified" Structured Snippets: - Header: "Features" - Values: "File Sync, Team Sharing, Version Control, Mobile Access, Admin Controls, API Access" Results After 30 Days: - Ad CTR: 3.7% (+32% improvement) - Ad Rank: Improved to 11/15 (moved up 3 positions) - Avg CPC: $5.60 (-12.5% due to better Quality Score) - Quality Score: 7/10 (+1 point from higher CTR) - Cost Per Click Savings: $0.80 × 1,850 monthly clicks = $1,480/month saved Asset-Level Performance (from Asset Report): Top Performing Sitelinks: 1. "Start Free 30-Day Trial" → 8.2% CTR, 42% of all sitelink clicks 2. "See Storage Plans & Pricing" → 5.4% CTR, 28% of clicks 3. "Read Customer Reviews" → 3.1% CTR, 18% of clicks 4. "View Security Features" → 2.2% CTR, 12% of clicks Optimization Actions Taken (Month 2): - Created mobile-preferred sitelink: "Download Mobile App" (performs 2x better on mobile) - Removed low-CTR structured snippet, added "Amenities: Unlimited Users, Free Migration, Dedicated Account Manager" - Added Price Assets showing three plan tiers: Starter ($10/user), Business ($25/user), Enterprise ($50/user) - Added Image Assets (3 visuals of product interface) Month 2 Results with Optimizations: - CTR: 4.3% (+54% vs original baseline) - Avg CPC: $5.20 (-19% vs baseline) - Total Monthly Click Savings: $0.80 × 2,200 clicks = $1,760/month - Annual ROI from Extension Setup: ~$21,000 saved on same conversion volume
Ad extensions (assets) are the easiest, highest-ROI optimization in Google Ads—they cost nothing to add, require minimal setup time (30-60 minutes), and improve CTR by 20-30% on average. Consider two identical ads for the same keyword: Ad A has no extensions (just headline + description), while Ad B has sitelinks, callouts, and a phone number. Ad B occupies 3x more screen space, provides 6 additional reasons to click, and shows a direct call button on mobile. Industry data shows Ad B will achieve 25-35% higher CTR, which improves Quality Score, which lowers CPC by 15-25%, creating a compounding benefit. Over a year, this "free" 30-minute investment generates thousands of extra clicks at lower cost.
Extensions also provide strategic benefits beyond CTR. Sitelink assets let you promote specific pages (pricing, features, testimonials) directly in search results, controlling the user's first click destination. Call assets enable phone leads for service businesses where 50-70% of conversions happen via phone. Location assets drive foot traffic for retail stores. Price assets pre-qualify shoppers by displaying costs upfront, reducing wasted clicks from people outside your price range. The 2025 introduction of asset-level reporting makes extensions even more valuable—you can now see that your "Free Trial" sitelink drives 3x more conversions than your "Pricing" sitelink, allowing data-driven optimization. Advertisers who actively manage and optimize extensions achieve 15-25% better overall account performance than those who ignore them.
Not adding any extensions/assets at all (wastes 20-30% potential CTR improvement)
Using generic sitelinks like "Home," "About Us," "Contact" instead of value-focused links like "Free Trial," "See Pricing," "Customer Reviews"
Adding only 1-2 sitelink assets instead of the recommended 4-6 (Google shows up to 4 at once)
Not including call assets for service businesses where phone conversions are critical
Writing callout assets that duplicate ad copy instead of providing new information
Setting extensions only at account level instead of customizing per campaign for relevance
Ignoring asset performance reports to optimize or remove low-performing assets
Add minimum 3 core asset types to every campaign: sitelinks (4-6), callouts (4-6), structured snippets (1-2 headers)
Use benefit-focused sitelink text: "Start Free Trial," "See Pricing," "Read Reviews" vs "Trial Page," "Pricing Page," "Reviews"
Make each sitelink description unique and compelling (25-35 characters showing key benefit)
Add call assets for any business where >20% of conversions happen via phone
Include location assets if you have physical locations (even home-based businesses benefit)
Create campaign-specific sitelinks for tight relevance (CRM campaign → "CRM Pricing," "CRM Features")
Review asset performance report monthly—pause sitelinks with <1% CTR, double down on high-CTR assets
Use scheduled assets for time-sensitive offers (holiday promotions, event registrations, limited-time deals)
Enable automated assets at account level to test Google-generated extensions, monitor performance
A score that determines your ad position and whether your ad shows at all, calculated using bid amount, Quality Score, and other auction-time factors.
Google's rating (1-10) of your ad's relevance to keywords and landing pages.
The percentage of people who click your ad after seeing it, calculated as clicks divided by impressions.
No, extensions themselves are completely free to add and display. You only pay when someone clicks your ad, whether they click the headline, a sitelink, a call button, or any other clickable element. The cost per click is the same regardless of which part of the ad they click. However, because extensions increase your ad's CTR by 20-30%, you'll get more total clicks (and pay for more clicks). But this is positive—you're getting more traffic at lower CPC (better Quality Score from higher CTR) without any additional setup cost. The ROI is exceptional: spend 30-60 minutes setting up extensions once, get 20-30% more clicks at 10-20% lower CPC forever. There's literally no downside to adding extensions besides the initial setup time.
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