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Ad Extensions (Assets)

定义

Ad extensions, now called assets in Google Ads, are additional pieces of information that expand your search ads with extra links, phone numbers, business details, and promotions. They increase ad visibility, improve click-through rates, and directly contribute to Ad Rank, often at no additional cost per click.

Types of Ad Extensions

Google Ads offers several extension types. Sitelinks add extra landing page links below your ad. Callouts highlight key benefits or offers. Structured snippets list features in specific categories. Call extensions add your phone number. Location extensions show your business address. Price extensions display product or service pricing. Image extensions add visual elements. Promotion extensions highlight sales and discounts. Each type serves a different purpose, and using multiple types together maximizes your ad real estate on the search results page.

How Extensions Impact Performance

Extensions improve performance in three ways. First, they increase visual size, making your ad more prominent and pushing competitors further down the page. Second, they provide additional relevant information that helps users decide to click. Third, Google factors expected extension impact into Ad Rank, meaning extensions can improve your position and lower your CPC even if no one clicks on them directly. Studies show extensions can improve CTR by 10-15% on average. There is no downside to enabling them since you only pay for the main ad click.

Extension Best Practices

Enable every relevant extension type for your business. Write sitelink descriptions (not just titles) to maximize real estate. Use callouts for your strongest differentiators: free shipping, 24/7 support, money-back guarantee. Create structured snippets for product categories or service types. Keep extensions updated with current offers and accurate information. Google chooses which extensions to show based on predicted relevance and performance, so providing many options gives the system more to work with. Review extension performance quarterly and replace underperformers.

Extension Auditing with AdWhiz

AdWhiz audits your extension coverage and identifies gaps. The audit flags campaigns missing key extension types and estimates the potential CTR improvement from adding them. For existing extensions, AdWhiz analyzes click-through rates and recommends replacements for underperforming assets. Extension completeness is a key factor in the AdWhiz health score since it is one of the easiest optimizations with the biggest impact.

常见问题

No, you do not pay extra for showing extensions. You only pay when someone clicks on your main ad headline or a sitelink. Callouts, structured snippets, and other informational extensions do not incur additional charges. This makes extensions one of the highest-ROI optimizations available.

At minimum, use sitelinks, callouts, and structured snippets for every campaign. Add call extensions if you want phone leads, location extensions for local businesses, and price extensions for e-commerce. The more relevant extension types you enable, the better your Ad Rank and CTR potential.

Extensions only show when Google predicts they will improve performance and when your Ad Rank is high enough. Low Ad Rank is the most common reason extensions do not appear. Other factors include mobile vs desktop, ad position, and extension relevance. Improving Quality Score and bids increases extension eligibility.

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