GEO instead of just SEO: Why your website is missing from AI answers

Your website can rank first on Google and still not appear in ChatGPT. Those are two different competitions. On Google, you compete for a place in a list of ten results. In an AI system, there is no list, only a single answer — and in that answer, you are either cited as a source or not at all. The work behind this is called GEO: Generative Engine Optimization.

This article explains the concrete reasons why AI systems skip over a website, the five causes we most often find, and how you can check it yourself in about 20 seconds. At the end, there is a sequence: what to do first, what comes next, and what can wait.

What has actually changed?

In the past, when people had a question, they typed it into Google, scanned ten links, and clicked on two of them. That click was the currency of search engine optimization. Today, more and more people type the same question into ChatGPT, Perplexity, or Google Gemini — and receive a ready-made answer with two or three source references.

For your website, this means an uncomfortable shift: it is no longer enough to be found. You must be cited. And whether an AI cites you is determined by technical and editorial factors that have never played a role in classic SEO.

Image: Planet Volumes / Unsplash

What is GEO — and how does it differ from SEO?

GEO (Generative Engine Optimization) is the work of ensuring that generative AI systems find, understand, and use your content as a source. SEO (search engine optimization) is the work of ensuring that your site appears near the top of a search engine results list.

The comparison at a glance:

Important: GEO does not replace SEO. The fundamentals support both. A slow site without a clean heading structure hurts Google and ChatGPT alike. The reverse is not true, however — good SEO does not automatically mean good GEO. This is exactly the gap we see in almost every audit.

The five most common reasons why AI systems skip a website

We ran the audit process against a range of real websites — from a trades business site to a major news portal. Five causes keep coming up, and four of them can be fixed in an afternoon.

1. The robots.txt blocks the AI crawlers

This is the most common and at the same time the least visible error. In the file robots.txt specifies which programs are allowed to read your site. In recent years, many agencies have reflexively blocked all AI crawlers there — often without consultation, sometimes as a plugin default.

These five names determine your visibility in AI answers:

• GPTBot — supplies ChatGPT with web content
• ClaudeBot — collects the content from which Claude substantiates answers
• PerplexityBot — Perplexity visibly names its sources with links and sends real visitors
• Google-Extended — controls AI Overviews and Gemini, separate from normal Google Search
• CCBot — Common Crawl, the data basis for many models and research tools

A single `Disallow: /` in the wrong line can make your entire website invisible to an AI system. There are good reasons to do this deliberately. There is no good reason to do it by accident.

Image: Zulfugar Karimov / Unsplash

2. Content is only created in the browser

Many modern websites deliver an almost empty HTML shell and build the actual text in the browser using JavaScript. For humans, this looks identical. For most AI crawlers, it does not: They do not execute JavaScript.What only comes into existence in the browser simply does not exist for them.

The test is simple: Open your site, right-click, and select “View Page Source”. If you cannot find your body text there, an AI cannot see it either.

3. Structured data is missing

Structured data(Schema.org, usually as JSON-LD) is the language your site uses to tell machines what it contains: this is a company, this is the address, this is a question with an answer, this is the author. Without it, everything has to be inferred from the body text.

For AI visibility, three types are particularly relevant:

• Organization or LocalBusiness — without this markup, it remains unclear which company is behind the page. This exact attribution determines whether you are named explicitly.
• FAQPage — by far the most frequently cited format, because it clearly separates question and answer.
• sameAs — references to LinkedIn, Wikipedia or the commercial register. They turn a website into a recognized entity.

4. There is no llms.txt

The llms.txt is to AI systems what the sitemap is to search engines: a compact Markdown overview that says in one sentence what you are about and links to your most important pages. It is located at `your-domain.de/llms.txt`.

The standard is still new and not yet established everywhere. But it costs you one hour of work and no ongoing expense — making it the most cost-effective GEO lever available right now.

5. The texts are not citable

This is where it gets uncomfortable, because it is not technical. AI systems do not cite entire pages, but individual paragraphs. A section placed under a clear question and answered in four sentences can be extracted. A text block spanning twenty lines cannot.

What makes content citable:

• Subheadings are real customer questions, not buzzwords
• Directly below is a complete answer in no more than 80 words
• Statements are verifiable: Numbers, time periods, reference values instead of “particularly fast"
• Comparisons and lists are presented in real lists and tables, not in running text
• The author is identifiable, with name and date

The last point is often underestimated. Google evaluates experience and expertise, and AI systems prefer content with a clearly identifiable author. Anonymous texts appear interchangeable — and interchangeable sources are not cited.

Image: NisonCo PR and SEO / Unsplash

How do I find out where my website stands?

You can check each of these points manually, one by one. For one page, that takes about an hour and requires you to know what you are looking for. Or you can have it checked.

We have built a free tool for this: the SEO and GEO Check. You enter the address of your homepage, the program accesses your site like a search engine crawler and evaluates 34 criteria — 18 for classic SEO, 16 for visibility in AI responses. In addition, an AI model assesses how citable your texts actually are.

What you get:

• Three values: an overall score plus one each for SEO and GEO
• The three most important findings immediately, without a form
• The full report with justification and recommendations for each point — on the page and by email

The check takes about 20 seconds, is free, and requires no sign-up. We do not store any content from your website. One analysis per domain per day.

Check your own website now →

Image: Zulfugar Karimov / Unsplash

What we typically see in the audits

One pattern runs through almost all results: The SEO score is significantly higher than the GEO score.Pages that are technically well built, have clean titles, and load quickly suddenly drop in the GEO criteria — because different questions are being asked there.

The four findings that appear most often:

1. No llms.txt present — on the vast majority of the pages reviewed
2. No Organization or LocalBusiness schema, although this is a company
3. No identifiable author and no update date
4. Paragraphs too long, subheadings phrased as keywords rather than questions

The encouraging part: these are not fundamental problems. Three of the four points are purely routine work and can be completed in a few days.

What order should I follow?

Not everything at once. This sequence delivers the most per hour invested:

1. Check crawler access. A look at the robots.txt. If GPTBot, ClaudeBot, PerplexityBot or Google-Extended are blocked there: unblock them, unless that is intentional. Effort: minutes. Impact: all or nothing.
2. Add Organization schema. Name, address, logo, website as JSON-LD. Effort: one hour. Without this, you remain nameless to machines.
3. Create llms.txt. One sentence about the offering, links to the ten most important pages. Effort: one hour.
4. Build an FAQ section and mark it up as FAQPage. Real customer questions, short answers. Effort: half a day, but the biggest content lever.
5. Rework existing texts. Turn headings into questions, split long paragraphs, add figures, make author and date visible. This is ongoing work, not a project.

If you check again after steps one to three, you will see the change in the GEO value immediately. That is the pleasant part of GEO: unlike classic SEO, the technical measures take effect right away, not only after months.

Is this eligible for funding?

In many cases, yes. Consulting services related to digitalization and AI are eligible for funding through several programs — INQA-Coaching, the BAFA consulting grant and, in Mecklenburg-Western Pomerania, the Digitalization funding MV. Depending on the program and the company, up to 80 percent of the consulting costs are covered.

Which program is suitable for you depends on the size, location, age of the company and the project. You can find an overview under Funding, and with the Funding Check you can see in two minutes which programs fit your company.

Frequently Asked Questions

Is GEO just a new buzzword for SEO?

No. The overlap is real — clean technical setup helps both — but the decisive GEO criteria do not appear in classic SEO at all: access permissions for AI crawlers, llms.txt, citability of individual paragraphs, entity linking via sameAs. A page can perform excellently on Google and still be invisible in AI answers.

Do I need to allow AI crawlers at all?

That is a business decision, not a technical one. Anyone who sells content has good reasons not to give it away for free in training data. Anyone who acquires customers through their website usually does not. The important thing is that it is a decision and not a side effect of a plugin default setting.

How quickly does it take effect?

Technical measures such as crawler permissions, schema, and llms.txt take effect as soon as the systems next access your site — usually within days. Content changes take longer because they first have to be written.

How often should I check?

After every major change to the website and otherwise about quarterly. GEO criteria in particular are changing quickly because new AI crawlers are constantly being added.

The next step

Before you change anything, you should know where you stand. The free SEO and GEO check gives you this baseline in about 20 seconds — with concrete findings instead of general advice.

And if you would prefer to go through the findings together: in the free initial consultation, we assess what will actually make a difference in your case and in what order. Non-binding, 30 minutes, no sales pressure.