Reference

AI Marketing & SEO Glossary

Clear, citation-ready definitions for the terms that matter in AI search: AEO, GEO, AISEO, LLM SEO, retargeting, and more.

AEO (Answer Engine Optimization): Answer Engine Optimization is the practice of structuring content so AI answer engines like ChatGPT, Perplexity, and Google AI Overviews can extract and cite it as a direct answer. AEO focuses on clarity, entity definition, and answer-first content design rather than traditional keyword ranking.
GEO (Generative Engine Optimization): Generative Engine Optimization is the discipline of optimizing content, entities, and trust signals so generative AI engines include and attribute a brand when generating responses. GEO emphasizes citation frequency and brand mention share inside AI-generated answers.
AISEO (AI Search Engine Optimization): AI Search Engine Optimization is the umbrella term combining AEO, GEO, and entity authority work. AISEO ensures content is understood, trusted, and selected by AI-powered search interfaces including ChatGPT Search, Perplexity, Google AI Overviews, Claude, and Gemini.
LLM SEO: LLM SEO is the practice of optimizing for large language models so they recommend your brand when users ask questions. It overlaps with AEO and GEO but emphasizes the language-model layer: training data presence, citation likelihood, and entity associations encoded in the model.
Answer Engine: An answer engine is an AI-powered system that returns synthesized direct answers rather than a list of links. Examples include ChatGPT, Perplexity, Google AI Overviews, Claude, and Gemini.
Entity Authority: Entity authority is the degree to which an AI system recognizes a business, person, or concept as a trusted, well-defined entity. It is built through consistent NAP data, structured data markup, citations on trusted third-party sites, and clear topical coverage.
Knowledge Graph: A knowledge graph is a structured database of entities (people, places, organizations, concepts) and the relationships between them. Search engines and AI systems use knowledge graphs to understand context and select sources for answers.
Schema.org / Structured Data: Schema.org is a shared vocabulary of structured data markup that helps search engines and AI systems understand the meaning of page content. Common types include Organization, Person, Article, FAQPage, and BreadcrumbList.
E-E-A-T: E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness — Google's quality framework for evaluating content and authors. AI engines apply similar signals when choosing sources to cite.
Topical Authority: Topical authority is the depth and breadth of coverage a site demonstrates on a specific subject. Sites with strong topical authority tend to be cited more often by AI answer engines and rank for a wider set of related queries.
Retargeting: Retargeting (also called remarketing) is a digital advertising tactic that shows ads to people who have previously visited a website or interacted with a brand. It uses cookies or pixels to follow users across the web and re-engage them.
Programmatic Display: Programmatic display advertising is the automated, real-time buying and placement of banner and visual ads across websites and apps, typically through demand-side platforms (DSPs) and ad exchanges.
ChatGPT Search: ChatGPT Search is the web-search-enabled mode of OpenAI's ChatGPT. It retrieves live web content and synthesizes answers with citations, making source selection an important visibility opportunity for brands.
Perplexity AI: Perplexity AI is an answer engine that combines large language models with live web retrieval. It cites every source inline, making it one of the most attribution-friendly AI search platforms.
Google AI Overviews: Google AI Overviews (formerly Search Generative Experience or SGE) is the AI-generated answer that appears at the top of many Google search results. Inclusion depends on entity authority, structured content, and trust signals.
Speakable Schema: Speakable is a Schema.org property that flags sections of a page suitable for voice assistants to read aloud. It supports voice search visibility on Google Assistant and similar platforms.
Citation Share: Citation share is the percentage of AI-generated answers in a topic area that cite or mention a specific brand. It is the primary measurable KPI for GEO and AI search visibility work.
NAP Consistency: NAP stands for Name, Address, and Phone number. Consistent NAP data across a website, Google Business Profile, and third-party directories is a foundational trust signal for both local SEO and entity authority in AI search.

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