AI Overviews visibility: Why top German online shops lost 16.7% of their organic reach
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Sistrix study: German top online shops lost 16.7% organic visibility. See what drives AI Overviews visibility and how to improve your chances of being cited.
Organic visibility for the 2,500 highest-grossing German online shops has fallen for the first time in years – down 16.7 percent year-on-year, according to a study by Sistrix and LEAP. At the same time, Google is showing AI-generated answers three times more often than last year. For retailers, the question is no longer only where they rank, but whether they get cited at all. This article explains what the numbers say about AI Overviews visibility, and what the available guidance from Google suggests you can do about it.
Key findings at a glance
- Organic visibility of the 2,500 highest-grossing online shops fell by 16.7 percent.
- 69.7 percent of research searches trigger an AI Overview, while purchase searches do so in only 0.2 percent of cases.
- The rank correlation between organic visibility and AI mention is 0.66, which underlines how much AI Overviews visibility still depends on classic organic strength.
A break after years of growth
The analysis covers domains that together account for well over 90 percent of German online retail sales, so the drop is not a niche effect. It marks a break after several years of expansion: between 2022 and 2025, the median visibility of online shops rose cumulatively by around 41 percent. In 2026, that trend reversed.
The share of organic traffic in total traffic also fell, from 42.5 to 33.3 percent. Extrapolated, that corresponds to a decline from roughly €35 billion to roughly €28 billion in organically driven revenue.
Generative search is reshaping the research phase
A key driver is the growing prevalence of Google AI Overviews. They now appear for 14.2 percent of the defined keywords – about three times more often than a year earlier. Shop domains, meanwhile, are being cited as sources only slowly more often: participation has risen from 2.3 to 5.3 percent. The gap between where AI answers appear and where shops actually show up inside them is therefore widening.
AI is most influential in information-oriented queries. Already 69.7 percent of research searches trigger an AI Overview, compared with just 0.2 percent of transactional queries with purchase intent. Purchase searches remain predominantly traditional for now, while the comparison and orientation phase is increasingly shaped by generative answers.
That matters for e-commerce because brands are often discovered and evaluated long before a purchase happens. Retailers who disappear from AI-generated answers during research may simply be absent later, at the decision point. This does not necessarily translate into immediate sales figures, but it changes visibility along the customer journey. The open question is how quickly AI Overviews move from research-driven searches toward queries closer to purchase – today their share of transactional searches is 0.2 percent.
Visibility remains the basis for citability
The study also found a close link between traditional organic presence and mentions in AI answers. The rank correlation between visibility and AI mentions is 0.66. The top 20 percent of shops by visibility account for approximately 72 percent of all AI citations, while the bottom 20 percent account for only about one percent.
In other words, AI Overviews visibility is not a separate channel you can win in isolation. It shifts SEO in online retail from pure ranking optimization toward citability in generative systems – but the foundation is still organic strength. The development is uneven, too: some shops are gaining double-digit percentages while others have lost more than half their visibility.
How to improve your chances of appearing in AI Overviews
Much like ranking in traditional search, there are best practices that can improve your odds. None of them is fool-proof or a guarantee, but together they give you a better chance of appearing in the Overviews.
1. Check whether different LLMs understand your content
According to Google, multiple large language models power AI Overviews. Optimizing for them starts with understanding how they see you and your content. Upload your content to an LLM such as Gemini or ChatGPT and test how well it is understood. Typical improvements include:
- updating word choices to improve readability,
- adding citations or quotes from reputable sources,
- starting initiatives to attract more customer feedback via online reviews.
2. Adjust to Google’s ranking system
Google runs a multistep ranking system. To rank higher, refresh your content – the system favors the freshest information on a given subject. It also favors original content rather than retellings and citations, rewards high-quality reviews, and rewards content that offers insightful analysis and original research written by experts or enthusiasts who genuinely know the topic.
3. Don’t forget technical requirements and spam policies
Sites that focus on providing the best content and experience for people, and uphold the spirit of Google’s principles, are more likely to do well in search results. Most websites pass Google’s technical requirements without much effort, but the factor still deserves attention.
Alongside that:
- Use the words people would actually use to look for your content, and place them in prominent locations such as the page title and main heading, plus descriptive places like alt text and link text.
- Make your links crawlable so Google can find other pages on your site.
- Tell people about your site. Be active in communities where you can talk to like-minded people about the services and products you mention on your site.
4. Optimize local business and e-commerce details
Where appropriate, generative AI responses can include product listings, product information, and information about local businesses. Using products such as Merchant Center (for example Merchant Center feeds) and Google Business Profiles can help your products and services become visible in both AI responses and other Google Search results.
5. Measure your AI Overviews visibility in Search Console
To measure how your content performs in generative AI features on Google Search and Discover, use the Generative AI performance report in Search Console. It gives you an idea of how people are discovering your content through those features.
6. Prioritize effective SEO over hacks
For Google Search, you can ignore tactics such as “chunking” content, creating unnecessary AI text files like llms.txt, or pursuing inauthentic mentions.
What this means for retailers
The study frames the change as a shift in visibility along the customer journey rather than an immediate collapse in sales. Research and comparison are moving toward generative answers; purchase queries have not, at least not yet. Because AI Overviews visibility correlates strongly with organic visibility, the practical response is not to abandon SEO but to make content that is genuinely worth citing – and to start measuring citation, not only rankings.
FAQ
Q: How much visibility did top German online shops lose?
A: The organic visibility of the 2,500 highest-grossing German online shops fell by 16.7 percent year-on-year, according to the Sistrix and LEAP study. The analyzed domains account for well over 90 percent of German online retail sales.
Q: How often do AI Overviews appear?
A: They appear for 14.2 percent of the defined keywords – roughly three times more often than last year.
Q: Do AI Overviews affect purchase searches?
A: Barely, for now. Transactional searches with purchase intent trigger an AI Overview in only 0.2 percent of cases, while 69.7 percent of research searches do.
Q: Is AI Overviews visibility connected to normal organic rankings?
A: Yes, closely. The rank correlation between visibility and AI mentions is 0.66. The top 20 percent of shops by visibility receive around 72 percent of all AI citations, while the bottom 20 percent receive about one percent.
Q: Are shops actually being cited more often in AI answers?
A: Only slowly. Participation of shop domains as cited sources rose from 2.3 to 5.3 percent, which is why the gap between AI-answered queries and actual shop visibility inside those answers is widening.
Q: How can I track AI Overviews visibility for my own site?
A: Use the Generative AI performance report in Google Search Console, which shows how people discover your content through generative AI features on Google Search and Discover.
Q: Did organic revenue really fall?
A: The share of organic traffic in total traffic fell from 42.5 to 33.3 percent. Extrapolated, that corresponds to a decline from approximately €35 billion to approximately €28 billion in organically driven revenue.
