Sitelink assets: getting extra CTR from your Search ads in 2026

If you want to extract maximum value from your Google Search ads, sitelink assets are non-negotiable. They are one of the most powerful, yet most underutilised features within the Google Ads platform. Sitelink assets give your ad more real estate in the search results, direct users straight to the most relevant pages, and structurally increase CTR. This article explains exactly what sitelink assets are, when they appear, how to use them effectively for both e-commerce and lead generation, and how AdBrains uses its own AI technology to fully automate this process for consistently better results.

What are sitelink assets?

Sitelink assets are additional links that appear beneath your main ad in Google Search. Each sitelink contains its own headline and two optional description lines, plus a separate destination URL. Google displays them when the ad has a sufficiently high Ad Rank and the sitelinks are relevant to the search query. On desktop, up to four sitelinks can appear side by side; on mobile, they are displayed as a horizontal scrollable row.

Sitelinks are available at three levels within your Google Ads account: account level, campaign level, and ad group level. The more specific the level, the more relevant the sitelinks tend to be. A sitelink at ad group level aligns seamlessly with the exact search intent of that ad group, increasing the likelihood of being displayed and clicked.

The primary advantage of sitelink assets is that they substantially increase the physical space your ad occupies on the results page. More space means more visibility, more click options for the user, and therefore a higher CTR. Industry benchmarks in 2026 show that ads with well-configured sitelinks generate on average 15 to 20 percent more clicks than ads without these assets.

Why sitelinks are so effective for CTR

Average CTR impact of ad assets on Search ads

Relative CTR increase per asset type (industry benchmark 2026)

Sitelink assets

20%

Callout assets

10%

Structured snippet assets

8%

Call assets

7%

Image assets

5%

The power of sitelink assets lies in three mechanisms. First, they increase the ad's footprint and therefore its visual presence on the page. In an environment where attention is scarce, the advertiser that occupies more screen space wins. Second, sitelinks give users freedom of choice. Instead of a single option, the visitor sees multiple relevant pages and is more likely to click through because they can reach the section most interesting to them immediately. Third, sitelinks direct visitors to deeper, more specific landing pages, which increases the quality of click traffic and generally improves conversion rates.

Consider ToetsJeKennis.nl, an online platform for exams and courses. When someone searches for "online exam practice", offering a sitelink directly to the most popular exam module, a sitelink to the pricing page, and a sitelink to customer reviews delivers far more value than a single click to the homepage. The user who already knows what they are looking for clicks through to the relevant page and converts faster.

The same applies to lead gen advertisers like Clima-Active.nl, active in air conditioning and heat pump installation. A search query like "heat pump installer" can be supported with sitelinks such as "Request a free quote", "Our approach" and "Brands and models". Each sitelink answers a different question the potential customer has, increasing the likelihood of a click-through and ultimately a quote request.

The right structure for maximum impact

To make sitelink assets truly deliver, a well-thought-out structure is essential. The following best practices form the foundation of an effective sitelink strategy:

• Add at least 4 sitelinks per campaign: Google then has enough material to rotate and show the best-performing combinations. With fewer than four sitelinks you miss optimisation potential.
• Write unique headlines: Each sitelink headline must communicate a distinctive value proposition. Avoid repeating the main ad copy.
• Use description lines: Two optional description lines per sitelink provide extra context and increase the chance of being shown in expanded format, which generates additional CTR.
• Link to relevant destination pages: Every sitelink must link to a page that closely matches its headline. A sitelink "View our electric folding bikes" at E-4motion.com must link to the product overview of new electric folding bikes, not to the homepage.
• Use sitelinks at ad group level: Ad group-specific sitelinks are most relevant and are displayed most frequently. Invest in specificity here.
• Add seasonal sitelinks: Temporary promotions, sales, or holidays offer opportunities to temporarily adjust sitelinks with a start and end date.
• Monitor performance and pause underperforming sitelinks: Google Ads shows CTR and conversion share per sitelink. Sitelinks with structurally low performance deserve review or replacement.

Sitelinks for e-commerce versus lead generation

The optimal sitelink strategy differs considerably between e-commerce and lead generation. The table below provides an overview of the most effective sitelink types per business model:

For E-4motion.com, the webshop for new electric folding bikes, the combination of product-oriented sitelinks and lead gen sitelinks (for test ride requests) is particularly effective. A searcher exploring "buy electric folding bike" sees both direct purchase links and the option to schedule a test ride, greatly enhancing the user experience and the likelihood of conversion.

How AdBrains automates sitelink assets with AI

Manual sitelink management vs. AdBrains AI automation

What differs structurally in approach and results?

Manual management

• Sitelinks set once and rarely updated
• No systematic A/B testing of sitelink copy
• Sitelink relevance per campaign not continuously monitored
• Ad Strength feedback reviewed manually
• Underperforming sitelinks stay active without a signal
• Seasonal updates require manual action

AdBrains AIAI advantage

• Sitelinks evaluated weekly on CTR and conversion data
• Automatic rotation and testing of sitelink variants
• Per-campaign and ad group relevance check at search term level
• RSA improvement system continuously analyses Ad Strength
• Underperforming sitelinks automatically paused
• Seasonal sitelinks proactively planned and activated

At AdBrains, we do not manage sitelink assets manually. Instead, we use an automated AI system that continuously evaluates, tests, and optimises sitelinks. This is a fundamental difference from the common approach where sitelinks are set up once and then left unchanged for months. Below we explain how our own AI technology structurally outperforms manual management on this specific topic.

Our RSA improvement system analyses not only the ad copy itself, but also the quality and relevance of all linked assets, including sitelinks. When a sitelink has a structurally low CTR or negatively affects the Ad Strength of an ad, the system automatically generates an improvement suggestion or replacement copy. This means sitelinks are never left in place too long without performance feedback.

In addition, our multi-agent verification system acts as a safety net. Every optimisation decision, including pausing or activating sitelinks, is reviewed by four independent AI agents before the change is actually implemented. This prevents errors and ensures that only changes that demonstrably contribute to better campaign results are executed.

For seasonal sitelinks, our AI handles proactive planning. Rather than reacting manually to upcoming holidays or promotional periods, the system detects relevant moments based on historical conversion data and automatically activates the appropriate sitelinks with a predefined runtime. For clients like ToetsJeKennis.nl, this means sitelinks around exam seasons are automatically adjusted to promote the most urgently relevant exam courses.

Audience management also plays a role. Our AI links sitelink performance to audience segments. The system can detect that a specific sitelink converts better for remarketing audiences (RLSA) than for cold audiences, and adjust bids and display frequency accordingly. This level of granularity is barely achievable with manual management.

Our automated search term mining also feeds the sitelink strategy. When new search terms emerge that match a specific category or service, the system detects this and generates a suggestion for a new sitelink that aligns with those search intents. This keeps sitelinks permanently up to date with what potential customers are actually searching for, which structurally increases relevance scores and CTR.

The result is a sitelink system that continuously adapts to market developments, seasonal patterns, and user behaviour, without requiring manual hours. For clients like Clima-Active.nl, where generating high-quality quote requests is the core objective, this delivers a measurably higher CTR and better quality incoming click traffic.

From impression to conversion: the role of sitelinks in the funnel

Sitelink conversion funnel: from impression to lead/purchase

Average industry benchmarks Search ads with sitelinks (percent mode)

100% Impressions

Ad shown with sitelinks

12% Clicks on main ad or sitelink

Average CTR with sitelinks ~12%

55% Landing page engagement

Visitors clicking further or scrolling

18% Conversions

From clicks to lead or purchase

Average conversion rate with sitelinks is 15-20% higher than without

Sitelink assets are more than a CTR booster. They play a strategic role throughout the entire ad funnel. By directing users to the most relevant page for them while still on the search results page, you shorten the distance between search intent and conversion. A visitor who lands directly on the quote form of Clima-Active.nl via a "Request a free quote" sitelink needs to take fewer steps than someone navigating from the homepage. This reduces drop-off and improves the conversion rate.

Industry data shows that ads with sitelinks display on average a 15 to 20 percent higher conversion rate compared to ads without sitelinks. This effect is even stronger when sitelinks are specifically tailored to the search intent of the ad group, which is precisely why ad group-level sitelinks are preferred over generic account-level sitelinks.

For online course platforms like HACCP-cursus.com, this directness is crucial. A participant searching for "HACCP certificate online" who lands directly on the enrolment page via a sitelink converts considerably faster than someone who first navigates through the homepage, then the course overview, and only then reaches enrolment. Every additional step costs conversions.

Common mistakes with sitelink assets

Many advertisers leave CTR potential on the table through avoidable mistakes when setting up sitelinks. The most common are:

• Linking sitelinks to the homepage: Any sitelink that links back to the homepage adds no value. Always use deeper, specific destination pages.
• Generic or repetitive headlines: Sitelinks like "More information", "Contact" or "Home" are too vague and perform poorly. Choose concrete, action-oriented language.
• Not filling in description lines: The two description lines per sitelink are skipped by many advertisers, even though they significantly increase the chance of expanded display.
• Setting up too few sitelinks: With fewer than four sitelinks, Google cannot rotate optimally. Aim for six to eight sitelinks per campaign for maximum testing opportunities.
• Never updating sitelinks: Sitelinks left unchanged for months lose relevance. Evaluate performance monthly and refresh the lowest-performing sitelinks.
• No alignment with search intent: A sitelink that does not align with what the user is searching for will be ignored. Use search intents as the guiding principle when writing sitelink copy.

Measuring and optimising sitelink performance

A sitelink strategy without a measurement structure is incomplete. Within Google Ads, you can view impressions, clicks, and CTR per sitelink via the "Assets" reporting tab. By segmenting this data by device, time of day, and network, you gain insight into which sitelinks perform best at which moment.

Link sitelink performance to your conversion tracking to see which sitelinks not only generate clicks but also actually produce conversions. For e-commerce clients like ToetsJeKennis.nl, it is valuable to track which sitelink drives the most purchases. For lead gen clients like Clima-Active.nl, the sitelink that generates the most quote requests is most valuable, even if another sitelink has a higher CTR.

Enhanced Conversions and server-side tracking provide additional signals that help measure sitelink performance even more accurately. When conversion signals are enriched with first-party data via a dedicated sGTM infrastructure, Smart Bidding strategies like Target CPA and Target ROAS receive more and better data to work with, improving overall campaign performance, including the distribution of impressions across different sitelinks.

Frequently asked questions about sitelink assets

When does Google show my sitelinks?

Google shows sitelinks when the ad has a sufficiently high Ad Rank and the sitelinks are relevant to the search query. This means not every ad impression automatically includes sitelinks. A high Quality Score, a strong bid, and relevant, well-written sitelinks significantly increase the likelihood of display. Sitelinks are also shown more frequently for branded search queries, as ad relevance tends to be highest there.

How many sitelinks should I add per campaign?

Google Ads allows up to twenty sitelinks per campaign. For optimal rotation and testing opportunities, it is recommended to set up at least six, and preferably eight sitelinks. This gives Google enough variants to show the best-performing combinations and to learn which sitelinks are most appealing to your target audience. Fewer than four sitelinks limits Google's ability to optimise.

What is the difference between account-level, campaign-level, and ad group-level sitelinks?

Account-level sitelinks apply to all campaigns and are the least specific. Campaign-level sitelinks are more relevant because they align with the campaign's theme. Ad group-level sitelinks are the most specific and align most closely with the search intent of that particular ad group. Google prioritises the most specific level: if sitelinks are available at ad group level, those are shown above campaign or account level sitelinks. Invest in ad group-level sitelinks for your most important campaigns.

Does filling in description lines for sitelinks really affect CTR?

Yes, description lines for sitelinks have a demonstrably positive effect on CTR when they are shown. Google can choose to display sitelinks with description lines in expanded format, causing the ad to occupy even more space on the results page. This "expanded sitelink format" is particularly effective for branded campaigns and campaigns where the ad appears in the first position. Always fill in both description lines for the maximum chance of expanded display.

Can I use sitelinks in Performance Max campaigns?

Yes, sitelink assets can also be added to Performance Max campaigns. Google then uses them at its own discretion across the various channels (Search, Display, YouTube, Gmail, Maps). For specific control over which sitelinks appear in a Search context, however, standard Search campaigns with campaign or ad group level sitelinks remain most effective. In a PMax campaign you have less influence over when and where specific sitelinks appear.