GEO: citable content
Generative Engine Optimisation prepares your content so that a language model can adopt it as a response: clear definitions, substantiated figures, questions as headings, answers in the opening sentences.
A growing share of your customers no longer ask Google, but ChatGPT, Perplexity or AI Mode in Google Search. We make sure your company is cited there as a source, without losing sight of your classic rankings.
An AI SEO agency optimises your website so that it can be found on Google and in generative AI systems: in ChatGPT, Perplexity, Google Gemini, Microsoft Copilot and in the AI Overviews of Google Search. This includes technical accessibility for AI crawlers, citable content, structured data and mentions in sources trusted by language models. At STARK, our collaboration begins with a fixed-price AI visibility audit.
Artificial intelligence is changing search in two ways: it answers questions itself, and it selects sources to do so. Our work focuses on four key areas to ensure your website is one of those sources.
Generative Engine Optimisation prepares your content so that a language model can adopt it as a response: clear definitions, substantiated figures, questions as headings, answers in the opening sentences.
GPTBot, PerplexityBot and Google-Extended must be allowed to read your pages and be able to understand them. Technically, that means checking and fixing robots.txt, rendering, structured data, llms.txt and Core Web Vitals.
AI systems recommend brands that appear in trustworthy sources: specialist portals, directories, reviews, press. We build these mentions deliberately, rather than just counting backlinks.
We track which questions prompt AI assistants to name your company, which competitors appear instead and how this changes over the months. You get figures rather than gut feeling.
The term ‘AI SEO’ refers to two distinct concepts that only appear similar at first glance. To ensure you know exactly what you’re getting from us, we keep them clearly separate.
This is the core of our work as an AI SEO agency: your website should be understood and cited as a source by generative search engines. The technical terms for this are Generative Engine Optimisation (GEO), Large Language Model Optimisation (LLMO) and Answer Engine Optimisation (AEO). They all refer to the same goal.
We use AI tools where they make routine work more efficient: when analysing large amounts of data from Search Console, when researching keywords, when clustering search intent and when automating reporting. In content creation, AI-assisted drafts provide an initial outline more quickly. What we do not automate: the judgement of what is relevant to your target audience.
Four phases in which you can see at any time what we are working on and what it has achieved.
We check which questions currently lead AI systems to name you, who is named instead and whether AI crawlers are even allowed to read your pages.
We’ll sort out the technical SEO, structured data and heading hierarchy, and create an llms.txt file. What Google doesn’t understand, no language model will either.
Existing pages are restructured around answers, and missing topics are added. Every page answers a clearly worded question, and everything it says can be backed up.
Every month we track AI mentions alongside classic rankings. What works, we expand. What does not gain traction, we discuss openly.
The costs depend on the size of the domain, the number of topics and the languages involved. You will receive a specific quote following the free audit call.
For a fixed fee, we’ll measure your current visibility in ChatGPT, Perplexity, Gemini and AI Overviews, check your site’s technical readiness for AI crawlers, compare you with the competition and deliver a prioritised roadmap. You can then continue working with this even without our involvement.
Implementing the roadmap: restructuring content, new citable pages, structured data, building mentions and monthly AI visibility reporting. Cancellable monthly.
Classic search engine optimisation and AI visibility from a single team. For businesses that need both and do not want to coordinate two agencies.
Traditional SEO aims for a position in a list: places 1 to 10 on Google. AI SEO aims to appear in an answer that a language model compiles from multiple sources. This brings about changes in three areas. Firstly, the individual paragraph counts for more than the page as a whole: Large Language Models break content down into passages and select those that answer a question most precisely. Secondly, the brand plays a greater role than the keyword: those who appear regularly in directories, specialist articles and reviews are more likely to be recommended. Thirdly, the way results are measured has changed: there is no such thing as a ‘position 3’. Either you are mentioned or you are not, and this also depends on how the question is phrased. For you, this means focusing on the relevance of entire topics rather than individual keywords, and ensuring that every key statement is backed up by evidence.
The good news: the foundation remains the same. Google AI Overviews, ChatGPT Search and Perplexity access a search index before they respond. If you can’t be found there, you won’t be cited either. That’s why every AI SEO strategy we undertake starts with the fundamentals that we, as an SEO agency based in Heidelberg, have been implementing since 2016: crawlable technology, content with substance, and authority through genuine mentions. We’ve summarised how the two disciplines differ in detail under GEO vs. SEO.
Each system finds its sources differently, and that determines the measures. Google AI Overviews and AI Mode rely on the Google index and favour pages that already rank well; here, classic SEO pays off directly. ChatGPT uses Bing search for current questions and draws on its training knowledge for recommendations, in which brands with many consistent mentions are more firmly anchored. We describe how to appear there under ChatGPT SEO. Perplexity cites very transparently and rewards pages with clear statements and source references. Google Gemini and Microsoft Copilot combine both worlds. We explain optimisation for the language models themselves, i.e. LLMO, on a separate page.
The market for AI SEO agencies in 2026 is confusing, because many providers have simply renamed their existing services. A few key questions will help you choose, even if you end up opting for a different agency:
The companies that benefit most are those whose customers conduct research before making a decision: B2B providers with products requiring explanation, consultancy firms, software manufacturers, medical practices and service providers with high-value contracts. In these sectors, questions such as ‘Which provider is right for us?’ are now being put to ChatGPT, and the answer lists three to five names. For B2B companies, this is the most direct lever we currently know of. Those who are already highly visible organically have an easier time of it, as the AI systems draw on the same sources. AI SEO is less urgent for purely local businesses with walk-in customers; in such cases, the Google Business Profile remains more important. We’ll tell you which group you belong to during our initial consultation.
No agency can guarantee that ChatGPT will name your company. Language models answer differently depending on the wording, and providers change their systems without notice. What we can commit to: a clean baseline measurement, measures that demonstrably increase the likelihood of being named, and reporting that shows progress and stagnation alike. We usually see first effects after three to four months, and reliable results after six to nine. If you need results faster, combine AI SEO with Google Ads.
An AI SEO agency is a specialised agency that optimises websites for two types of search system: classic search engines such as Google and Bing, and generative AI systems such as ChatGPT, Perplexity, Google Gemini and AI Overviews. The aim is for your company to be named as a source or recommendation in AI answers. Many agencies also use the term to mean using AI tools in their own SEO work.
At STARK, AI SEO starts with the fixed-price AI visibility audit, followed by ongoing support depending on the size of the website and the number of topics, combined with classic SEO if you wish. You will receive a concrete proposal after the free audit call. On the market, hourly rates for specialised agencies range from €100 to €200, and serious support can hardly be provided for less than around €1,000 a month.
No. Generative search engines draw on classic search indexes before they answer. If you cannot be found on Google and Bing, you will rarely be cited by ChatGPT or Perplexity either. AI SEO adds citability, brand mentions and a new form of measurement to search engine optimisation. It does not replace it.
Technical adjustments often take effect in Perplexity and the AI Overviews within a few weeks, as these systems search in real time. Mentions in ChatGPT’s training data build up more slowly, usually over a period of months. Realistically, we expect the first measurable mentions after three to four months and reliable results after six to nine.
To measure AI visibility, we use SE Ranking with AI visibility tracking and our own prompt sets, which we run against the major AI systems every month. For content analysis we use NeuronWriter and Search Console; for technical work, Screaming Frog and your server's log files, to see whether AI crawlers actually visit. Tool licences are included in our prices.
On three levels: first, the share of relevant questions for which AI systems name your company, compared with your competitors. Second, the traffic that demonstrably comes from AI systems; ChatGPT, Perplexity and Copilot usually pass on a recognisable referrer. Third, the enquiries that result from it. We continue to report Google rankings alongside this.
For small businesses with an offering that needs explaining and customers beyond the region, yes, because competition in AI answers is still thin and a single mention can be worth a lot. For purely local businesses, the Google Business Profile is currently the more important lever. We will tell you that openly in the initial consultation rather than selling you a package.
We use AI tools for research, outlines, data analysis and drafts. Nothing is published that has not been reviewed, enriched and backed up with sources by a person with expert knowledge. Generic AI text is downgraded by Google and not cited by language models; it would undermine the purpose of this work.
During the free 30-minute call, we’ll look together at how the AI assistants respond to your customers’ questions and give you our honest opinion on whether AI SEO is worth it for you.
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