What are Google AI Overviews?
Google AI Overviews, formerly known as the Search Generative Experience (SGE), are AI-generated summaries shown directly above the organic search results. Instead of a list of blue links, Google gives the user a synthesized answer to the query. The sources used for that answer appear next to it as clickable cards. For a short definition, see our glossary entry on AI Overviews.
The technology runs on Google's own Gemini model, adapted for web search. AI Overviews also appear in Switzerland and the rest of the DACH region. How often they show up was measured by the Pew Research Center for the US: in March 2025, 18% of all Google searches by the users studied included an AI summary. Informational queries such as "What is ...", "How does ... work" or "Comparison between ..." are the most likely to trigger AI Overviews.
For businesses, this is a fundamental shift. The first information a potential customer sees no longer comes from a single website; it is an answer that Google has put together. If you appear as a source in that answer, you gain a lot of trust and visibility. If you are missing, you lose potential touchpoints, even when your own website ranks on page 1 of the organic results.
How do AI Overviews work technically?
AI Overviews are built on an approach called RAG (retrieval-augmented generation). The process runs in several steps. First, Google crawls the web as usual and indexes billions of pages. When a user enters a query that triggers an AI Overview, the system picks several relevant sources from the existing index. According to Pew Research, 88% of the summaries studied cited three or more sources. The Gemini model then generates a coherent answer that combines information from those sources.
The key difference from classic featured snippets: AI Overviews generate new text instead of extracting existing passages. The model combines several perspectives, answers follow-up questions and gives the user an interactive experience. Google prefers structured, authoritative content from websites with strong E-E-A-T signals.
The table below shows the main differences between classic featured snippets and AI Overviews:
| Feature | Featured snippet | AI Overview |
|---|---|---|
| Source | 1 page | 3-5 pages |
| Format | Extracted text | AI-generated summary |
| Interaction | Click on the source | Optional click + follow-up questions |
| Availability | All queries | 18% of searches (US, March 2025, Pew Research) |
| Clicks on classic results | On 15% of visits | On 8% of visits (US, March 2025, Pew Research) |
AI Overview optimization: how your business gets cited
The good news: you can influence whether your business is cited as a source in AI Overviews. The following five steps are the basis of AI Overviews SEO.
1. Use structured data consistently
Schema.org markup is the direct line of communication with Google's AI system. Implement FAQ, HowTo and Article schema on all relevant pages. Structured data helps the Gemini model understand what your page is about and identify it as a trustworthy source. FAQ markup has proven especially effective, because AI Overviews often appear for question-and-answer queries. Professional on-page optimization always includes structured data.
2. Strengthen E-E-A-T
Experience, Expertise, Authoritativeness and Trustworthiness are the key factors Google uses to assess sources for AI Overviews. Make it clear on your website who is behind the content. Author profiles with qualifications, references to industry publications and transparent company information strengthen your E-E-A-T profile. Websites seen as an authority in their industry are selected as a source much more often.
3. Structure content as clear questions and answers
AI Overviews look for precise answers to specific questions. Structure your content so that every important question your audience has is answered in 2-3 clear sentences. Use H2 and H3 headings that state the question, followed by a compact answer block. This format is ideal for LLM optimization and makes it more likely that your content is used as a source.
4. Keep content up to date
AI Overviews prefer fresh content. Pages that are updated regularly have a clear advantage over outdated ones. Review your most important pages at least once a quarter and update data, statistics and recommendations. Show the update date visibly on the page, for users and for Googlebot via the dateModified schema property.
5. Technical SEO as the foundation
Fast, mobile-optimized pages are the precondition for Google to consider your content at all. Core Web Vitals, a clean site architecture and error-free indexing form the foundation. A professional SEO audit uncovers technical weaknesses and makes sure nothing stands between your content and Google's AI.
Effect on clicks, traffic and visibility
The effect of AI Overviews on organic traffic varies. For purely informational queries, so-called zero-click searches, the click-through rate drops sharply because users find their answer directly in the AI summary. The Pew Research Center measured this for March 2025: with an AI summary, US users clicked a classic search result on 8% of visits; without a summary, on 15%. They clicked a link inside the summary itself on only 1% of visits. This mainly affects generic knowledge questions that involve no purchase decision. If your rankings are stable but you are losing clicks, the guide Combining SEO and GEO shows how to respond.
The other side: if you are named as a source in AI Overviews, you appear directly in the answer, even if fewer users click through. Being cited by Google's AI can work like a recommendation and makes your brand visible in search before a click happens.
AI Overviews reinforce the "winner takes more" effect even more than traditional SERPs. In classic search results, 10 websites get visibility; in AI Overviews, only a few sources are named directly in the answer. Companies that invest in optimization early gain a significant competitive advantage. If you act now, you secure a position that will be increasingly hard for latecomers to win.
Conclusion
Google AI Overviews are not a passing phase; they are the future of Google Search. According to Pew Research, they already appeared in almost one in five Google searches in the US in March 2025, and they are changing how users find and consume information. For companies in Switzerland and the DACH region, this means: optimizing early is the key to a competitive advantage.
Structured data, strong E-E-A-T, current content and a solid technical base together make it possible to appear as a source in AI Overviews. These measures also support your classic SEO and your Generative Engine Optimization (GEO), so the investment pays off several times over.
If you are cited as a source in AI Overviews, you gain more than visibility: Google itself recommends you as a trustworthy authority. That is the strongest form of digital recommendation.
Read also how AI search systems select their sources and which GEO trends for 2026 will shape the industry.
Want to know how visible your business is in AI Overviews and what potential is still untapped? Let's run a free analysis together and develop a tailored strategy for your AI visibility.