The glossary of
AI visibility.
34 terms around GEO, AEO, GAIO and AI Visibility – explained compactly, with links that go deeper. Your reference work for the AI search era.
All terms
alphabetically.
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AEO (Answer Engine Optimization)
Optimizing content for AI answer engines like ChatGPT, Perplexity or Google AI Mode. Goal: your own brand becomes part of the direct answer instead of just a search result. To the AEO guide → To the detail page →
AI Mode (Google)
Google's conversational search view in which the AI delivers complete dialog answers instead of link lists. Alongside AI Overviews, the second AI search format brands have to keep an eye on. To the detail page →
AI Rank Tracker
Tool that measures positions like a classic rank tracker – but in AI answers: where does ChatGPT name your brand? GeoStars as an AI Rank Tracker → To the detail page →
AI Visibility
Umbrella term for AI visibility: a brand's presence in the answers of generative AI systems. Measured with AI Visibility tools like GeoStars. To the detail page →
AI Visibility Tool
Software that automatically measures whether and how a brand appears in AI answers – with metrics like Visibility Score, Share of Voice and Citation Rate. The best tools compared → To the detail page →
Answer Engine
AI system that answers questions directly instead of listing search results – e.g. ChatGPT, Perplexity or Google AI Mode. The counterpart to the classic search engine. To the detail page →
Brand Mentions (AI)
Mentions of a brand by name in AI answers – as a recommendation, in a comparison or as a source. Track brand mentions → To the detail page →
ChatGPT Monitoring
Systematic monitoring of whether, where and how ChatGPT mentions a brand – through daily automated prompt queries instead of manual spot checks. Learn more → To the detail page →
ChatGPT Search
ChatGPT mode with live web access: answers come from current search results (RAG) instead of training data alone. Good rankings have a fast effect on AI visibility here. To the detail page →
Citation
A link to a website as a source in an AI answer. Stronger than a plain mention: citations bring traffic and authority. To the detail page →
Citation Gap
List of the prompts where competitors get cited or recommended but your own brand is missing. The result of an AI competitor analysis – and effectively a prioritized content roadmap. To the detail page →
Citation Rate
Share of AI answers in which your own website is cited as a source. A core KPI alongside mention rate and Share of Voice. To the detail page →
E-E-A-T
Google's quality concept: Experience, Expertise, Authoritativeness, Trustworthiness. AI systems also prefer brands with demonstrable expertise and trustworthy signals. To the detail page →
Mention position
The spot where a brand is named within an AI answer. First recommendations get strong attention, later ones hardly any – analogous to ranking position in SEO. To the detail page →
GAIO
Google AI Overview Optimization: measures to appear in Google's AI overviews and get cited there. To the GAIO guide → To the detail page →
Generative Engine
AI system that generates answers instead of listing documents – an umbrella term for ChatGPT, Gemini, Claude, Perplexity & Co. To the detail page →
GEO (Generative Engine Optimization)
The discipline of optimizing content and brand signals so that generative AI systems mention, recommend and cite the brand. The SEO of the AI era. What is GEO? → To the detail page →
GEO Score
A condensed GEO metric from 0–100 that combines mention rate, position, sentiment and citations across all AI platforms into a single progress KPI. To the GEO Tracker → To the detail page →
GEO Tracker
Tool for measuring GEO success: daily AI queries, visibility metrics and trend curves. GeoStars GEO Tracker → To the detail page →
Google AI Overviews
AI-generated summaries above the Google search results that cite selected sources. They reach billions of users – and change click distribution massively. Track AI Overviews → To the detail page →
Grounding Page
A dedicated facts page about your own brand (founding, numbers, services, source links) that gives AI systems consistent, citable information. To the detail page →
Hallucination
A false or invented statement by an AI system – for example incorrect brand information. Monitoring uncovers hallucinations about your own brand before they reach customers. To the detail page →
AI Visibility
How often and how prominently a brand appears in AI answers – the core metric of GEO. Measure AI visibility → To the detail page →
AI Competitor Analysis
Comparison of your own AI presence with competitors: Share of Voice, Citation Gap, sentiment benchmark. Learn more → To the detail page →
LLM (Large Language Model)
Large language model – the technology behind ChatGPT, Gemini, Claude & co. LLMs generate answers based on training data and, where applicable, live search. To the detail page →
LLM Monitoring
Monitoring several language models at once for brand mentions, sentiment and citations – e.g. with GeoStars across 5 platforms. To the detail page →
llms.txt
Text file in the website root that explains a site's structure and most important content to AI crawlers – the robots.txt equivalent of the AI era. To the detail page →
Prompt
Input/question to an AI system. In GEO, prompts replace keywords: what gets tracked is what your audience really asks the AI – e.g. “Which tool do you recommend for …?” To the detail page →
RAG (Retrieval Augmented Generation)
Method in which AI systems retrieve sources live before answering (e.g. via web search) and build them in. Makes current content and good rankings immediately relevant for GEO. To the detail page →
Sentiment analysis
Automatic assessment of whether an AI mention turns out positive, neutral or critical. Makes AI reputation measurable – not just presence. To the detail page →
Structured data (Schema.org)
Machine-readable markup (FAQPage, Article, Organization …) that helps search engines and AI systems classify and cite content correctly. To the detail page →
Visibility Score
Percentage value: in what percentage of the answers to the tracked prompts does the brand appear? The base value of every AI visibility measurement. To the detail page →
Zero-click search
Search query that ends without a click because the answer is displayed directly – the new normal thanks to AI Overviews and answer engines. That makes visibility in the answer itself decisive. To the detail page →
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