Ad extensions are additional pieces of information that expand a Google search ad beyond its standard headline and description. They can display your phone number, specific page links, business address, pricing, promotions, and more — all within the same ad unit on the search results page. More real estate on the page means more ways for a potential customer to engage before they even click.

Google rebranded ad extensions as ad assets in September 2022. The two terms refer to the same features; “ad assets” is now the official Google Ads terminology, though “ad extensions” remains widely used in the industry and you’ll encounter both in documentation, agency conversations, and older campaigns. Whether your team says “extensions” or “assets,” they’re talking about the same thing.

Extensions don’t cost extra to add — you pay only for clicks, same as any other ad. Google automatically decides which extensions to show on a given search based on expected performance and relevance, so adding more well-configured extensions gives the algorithm more to work with.

[Image: Screenshot of a Google search ad showing multiple active extensions — sitelinks, callouts, and a call extension — compared to a basic ad without extensions]

Types of Ad Extensions (Ad Assets)

Google currently offers a range of manual and automated extension types. The most widely used:

Sitelink assets — Additional links below the main ad that direct users to specific pages on your site. A law firm might show links to “Personal Injury,” “Family Law,” “Free Consultation,” and “About Our Team.” Sitelinks appear in sets of two or four and are among the highest-impact extensions for driving clicks.

Callout assets — Short, non-clickable phrases (up to 25 characters each) that highlight key selling points. “No Contracts,” “24/7 Support,” “Free Estimates.” These add context without requiring the user to click through.

Structured snippet assets — Predefined category headers paired with a list of values. For example, “Services: Web Design, SEO, PPC, Branding” or “Brands: Nike, Adidas, Under Armour.” Useful for showing the range of what you offer.

Call assets — Display your phone number directly in the ad, allowing mobile users to call with one tap. On desktop, a clickable call button appears alongside the ad.

Location assets — Pull from a connected Google Business Profile to show your address, a map pin, and distance from the searcher. Particularly effective for businesses with physical locations.

Image assets — Square images that appear alongside Search ads, adding visual contrast to an otherwise text-heavy results page.

Price assets — Display individual products or services with their prices, giving users cost information before they click.

Promotion assets — Highlight sales and offers with a price-tag icon, discount amount, and optional date range. Effective for seasonal campaigns and limited-time offers.

Lead form assets — Allow users to submit their contact information directly within the ad, without visiting a landing page.

App assets — Promote a mobile app with a link to download it from the App Store or Google Play.

Automated extensions — Google can dynamically generate extensions (including seller ratings, dynamic sitelinks, and dynamic callouts) based on your website, existing assets, and ad content. These appear automatically when Google predicts they’ll improve performance.

Purpose & Benefits

1. More Visibility on the Search Results Page

A standard text ad occupies a predictable amount of space. Add sitelinks, callouts, and a call extension, and that same ad can take up significantly more vertical real estate — pushing competitors further down the page. In a search landscape where position matters, extensions give your ad presence beyond the headline. Our PPC management work consistently shows that ads with multiple active assets outperform bare-text ads on click-through rate.

2. Higher Relevance to Searcher Intent

Extensions let your ad surface the most relevant information for different types of searches. A user searching “HVAC repair cost” might respond to a price extension. A user searching “HVAC company near me” might respond to a location extension and a call asset. Because Google selects which extensions to show based on the search query, well-configured assets automatically match the right information to the right searcher — without running separate ads for each scenario.

3. Better Quality Score and Lower Cost Per Click

Google rewards ads that are highly relevant to searchers. A strong combination of extensions signals to Google that your ad is informative and user-friendly, which can improve your Quality Score. A higher Quality Score means you may pay less per click for the same ad position compared to a competitor with fewer or poorly configured assets. This is one of the most practical ROI levers in a PPC campaign that requires no additional spend to activate.

Examples

1. Local Service Business Using Location and Call Assets

A plumbing company running search ads adds a location asset (linked to their Google Business Profile) and a call asset. Mobile users searching “emergency plumber” see the ad with the phone number and a map pin showing the business is 3 miles away. They can call directly without clicking to a landing page — reducing friction at the exact moment a customer has urgent intent. Google Business Profile management and paid search work well together for exactly this reason.

2. E-Commerce Retailer Using Sitelinks and Promotion Assets

An online retailer running a spring sale adds a promotion asset showing “20% off sitewide — ends Sunday” and sitelinks pointing to “Women’s Shoes,” “Men’s Shoes,” “New Arrivals,” and “Sale Items.” The promotion asset draws attention with a price-tag icon; the sitelinks let different intent signals (browsing a category vs. hunting for a deal) each find the right entry point into the site.

3. Professional Services Firm Using Callouts and Structured Snippets

A law firm adds callout assets (“Free Initial Consultation,” “Evening Appointments Available,” “Serving Clients Since 1998”) and structured snippets with the header “Practice Areas:” and values like “Personal Injury, Family Law, Estate Planning, Business Law.” These extensions communicate scope and trust in the eight words a prospective client has time to read while scanning results.

Common Mistakes to Avoid

  • Adding too few extensions — Google recommends using every extension type relevant to your business. Running only one or two misses the opportunity to occupy more page space and provide more signals to Google’s relevance algorithm.
  • Setting extensions and forgetting them — Promotions with expired dates, phone numbers that change, outdated pricing — stale extensions can mislead potential customers and hurt conversion rates. Schedule regular reviews, especially after any business change.
  • Sitelinks that all point to the homepage — Sitelinks are most valuable when they direct users to distinct, specific pages. Pointing four sitelinks to the same URL or to near-identical pages provides no additional value and wastes the extension slots.
  • Not connecting Google Business Profile for location assets — Location assets require a linked Google Business Profile. Many advertisers skip this connection and miss out on the local visibility benefits, especially for searches with geographic intent.

Best Practices

1. Implement Extensions at the Right Level

Extensions can be added at the account, campaign, or ad group level. Account-level extensions apply everywhere. Campaign-level extensions apply only to that campaign. Ad group–level extensions apply to a single ad group and override broader settings. Structure your assets thoughtfully: universal messages (callouts about your company’s core values) belong at the account level; promotion assets for a specific product belong at the campaign or ad group level.

2. Write Callouts That Add Information, Not Repetition

Callouts work best when they communicate facts not already in the ad’s headline or description. If your headline says “Affordable Web Design,” a callout repeating “Affordable Prices” is wasted space. Use callouts to add differentiated details: “No Long-Term Contracts,” “Dedicated Account Manager,” “Results Reported Monthly.” Each callout should earn its place by telling the searcher something genuinely new.

3. Monitor Asset Performance in the Assets Report

Google Ads provides per-asset performance data in the “Ads & assets” section, including impressions, clicks, and CTR for each extension. Review this data regularly and pause or replace underperforming extensions. Pay attention to which sitelinks get the most clicks — that’s a signal about what your audience actually wants to see, and it can inform broader marketing decisions about which pages and offers to prioritize.

Frequently Asked Questions

Do ad extensions cost extra to use?

No. Ad extensions are free to add. You pay the same cost-per-click as you would without them. Because extensions typically increase click-through rates without increasing the bid, they tend to lower your effective cost per conversion — making them one of the highest-value optimizations in any Google Ads account.

Does Google always show my extensions?

Not necessarily. Google decides which extensions to show on each auction based on expected performance, ad rank, and relevance to the search query. There’s no guarantee a specific extension appears on any given search. This is why adding more relevant extensions gives Google more to work with — and increases the likelihood that something useful shows up.

What’s the difference between ad extensions and ad assets?

They’re the same thing. Google rebranded “ad extensions” to “ad assets” in September 2022. The change was in name and interface only — the features themselves work the same way. Both terms are still in common use. “Ad assets” is the current official Google terminology; “ad extensions” is the older term you’ll still see in many guides and industry conversations.

How many sitelinks should I add?

Google recommends at least four sitelinks per campaign. Sitelinks display in even sets (two, four, or six), so having at least four ensures they can appear in their full format. Each sitelink should point to a distinct, high-value page relevant to the campaign’s theme — not variations of the same page.

Can I use extensions on campaigns other than Search?

Extension availability varies by campaign type. Sitelinks, callouts, and structured snippets are available for Search campaigns. Some assets — like image assets — also appear on Display and YouTube campaigns. Performance Max campaigns use a broader “asset group” concept that encompasses text, images, and video in a unified format.

Related Glossary Terms

How CyberOptik Can Help

Getting ad extensions configured correctly — and keeping them current — is a detail that makes a measurable difference in PPC performance. Our marketing team sets up and manages extensions as part of every paid search engagement, ensuring you’re using every available asset type that fits your business. Whether you’re launching a new campaign or auditing an existing account, we can help you get more from each dollar you spend. Explore our PPC management services or contact us to discuss your campaigns.