The language of AI search, defined.
Clear definitions and examples for the terms behind AI visibility, citations and agent discovery.
Explore aeo/geo glossaryFind the term you need.
Generative Engine Optimization (GEO)
The practice of optimizing content to appear in AI-generated responses from systems like ChatGPT, Claude, and Perplexity.
Read definitionAnswer Engine Optimization (AEO)
Optimizing content to provide direct answers to user queries in AI-powered search and answer engines.
Read definitionAI Brand Mentions
Instances where AI systems reference, cite, or recommend specific brands in their generated responses.
Read definitionAI Visibility Score
A metric measuring how often and favorably a brand appears in AI-generated responses across different platforms.
Read definitionCitation Probability
The likelihood that an AI system will cite or reference specific content when generating responses to relevant queries.
Read definitionReference Rate
The percentage of AI-generated responses that cite or mention a specific source, replacing click-through rate as a key GEO metric.
Read definitionLLM Crawlers
Automated bots used by AI companies to crawl and index web content for training and real-time retrieval.
Read definitionllms.txt
A proposed standard file that helps AI systems understand website content structure and important pages.
Read definitionAI Content Ranking
How AI systems prioritize and order content when generating responses, determining which sources get cited.
Read definitionQuery Fanout
The process where AI systems decompose a single user query into multiple sub-queries to gather comprehensive information.
Read definitionTopical Authority
A measure of expertise and trustworthiness in a specific subject area that influences AI citation decisions.
Read definitionSchema Markup for AI
Structured data that helps AI systems understand content context, relationships, and meaning.
Read definitionAI Share of Voice
The percentage of AI-generated responses in a category or topic where a brand is mentioned compared to competitors.
Read definitionE-E-A-T for AI
Experience, Expertise, Authoritativeness, and Trustworthiness signals that influence AI content selection.
Read definitionAI Overview (Google SGE)
Google's AI-generated summary that appears at the top of search results, synthesizing information from multiple sources.
Read definitionPrompt Engineering for GEO
The practice of crafting effective prompts to test and understand how AI systems respond to brand-related queries.
Read definitionAI Brand Monitoring
Continuous tracking of how AI systems mention, describe, and recommend brands across platforms.
Read definitionContent Authority
The perceived trustworthiness and expertise of content that influences AI citation decisions.
Read definition