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Glossary of AI search

One page per term. Each starts with a definition that stands on its own — because that is the part an answering system quotes — and only then explains the rest.

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All the other terms

Frequently asked questions

What is GEO (Generative Engine Optimization)?

GEO, Generative Engine Optimization, is the set of techniques used to make a brand appear in answers generated by artificial intelligence. It differs from SEO because it does not work on position in a list of results, but on the probability of being cited inside an answer.

What is AEO (Answer Engine Optimization)?

AEO, Answer Engine Optimization, is optimisation for answer engines: systems that return a single answer instead of a list of links. It covers both conversational assistants and the summaries generated by search engines.

What is AI visibility?

AI visibility measures how often a brand appears in answers generated by artificial intelligence to questions in its industry. It is not measured in rankings but in presence, order of citation and the words used to describe the brand.

What is AI citation?

An AI citation is the moment an answering system names a brand or takes information from one of its pages. It is the unit of measurement of visibility in answers: without citations, a brand does not exist for whoever uses that assistant.

What is AI crawler?

An AI crawler is the program an artificial intelligence company uses to read web pages, either to train its models or to answer in real time. The most common are GPTBot, ClaudeBot, PerplexityBot and Google-Extended.

What is llms.txt?

llms.txt is a text file placed at the root of a website that describes, in a concise machine-readable form, which pages matter most and what they are about. It helps artificial intelligence systems orient themselves without having to interpret the whole site.

Find out how your brand appears in AI answers today. The analysis takes about ten minutes.