Knowledge structure

The search ecosystem taxonomy

A stable taxonomy for modern and future search: SEO, technical search, semantic systems, structured data, AEO, GEO, AI search, LLM infrastructure, and agentic search.

SEO

Core search foundations, intent, visibility, and measurable organic growth.

SEO FundamentalsTechnical SEOSemantic SEOEntity SEO
SEO FundamentalsTechnical SEOOn-Page SEOOff-Page SEOKeyword ResearchContent SEOLink BuildingSemantic SEOEntity SEOLocal SEOInternational SEOMultilingual SEO
Technical Search

Crawlability, indexation, rendering, architecture, and machine-readable systems.

CrawlingIndexingRenderingJavaScriptHTTPCore Web Vitals
CrawlingIndexingRenderingJavaScriptHTTPStatus CodesCanonicalizationRobots.txtXML SitemapsPaginationHreflangCore Web Vitals
Semantic Search

Meaning, relationships, entity alignment, and knowledge connectivity.

EntitiesKnowledge GraphsTopical AuthoritySemantic Relationships
Semantic SearchEntitiesEntity SEOEntity RecognitionEntity LinkingKnowledge GraphsTopical AuthoritySemantic RelationshipsStructured KnowledgeInformation Architecture
Structured Data

Schema, machine-readable semantics, and explicit entity understanding.

Schema.orgJSON-LDRDFRich Results
Schema.orgJSON-LDRDFMicrodataRich ResultsStructured DataSchema GraphsEntity IDssameAs@idOrganizationPerson
AEO

Answer-focused content that is easy to retrieve, summarize, and cite.

Answer EnginesFeatured SnippetsDirect AnswersConversational Search
Answer Engine OptimizationAnswer EnginesFeatured SnippetsPeople Also AskQuestion TargetingDirect AnswersConversational SearchAnswer RetrievalAnswer Formatting
GEO

Generative visibility, AI citations, and visibility across LLM-generated outputs.

AI VisibilityAI CitationsBrand RetrievalAI Overviews
Generative Engine OptimizationGenerative SearchAI VisibilityAI CitationsAI MentionsBrand RetrievalEntity RecognitionCitation OptimizationAI OverviewsAI ModeGenerative Search Interfaces
AI Search

AI discovery and retrieval systems across assistants, browsers, and answer interfaces.

ChatGPT SearchPerplexityGeminiAI Overviews
AI SearchChatGPT SearchPerplexityGeminiMicrosoft CopilotGoogle AI OverviewsGoogle AI ModeClaudeAI Search CrawlersAI DiscoveryEntity RetrievalCitation Retrieval
LLM / AI Infrastructure

The machine-readable and retrieval stack behind modern AI search experiences.

LLMs.txtRAGEmbeddingsVector SearchKnowledge Graphs
LLMLLMs.txtAI CrawlersGPTBotOAI-SearchBotClaudeBotPerplexityBotGoogle-ExtendedBingbotCommon CrawlRAGRetrieval
Future Search

Agentic systems, multimodal interfaces, and the next web of autonomous discovery.

Agentic SearchMultimodal SearchVoice SearchVisual Search
Agentic SearchSearch AgentsBrowser AgentsAutonomous DiscoveryAI RecommendationsMachine CommerceAgent CommerceMultimodal SearchVisual SearchVoice SearchConversational SearchSearch Everywhere

Evidence discipline

Every term is designed to distinguish documented facts, observed behavior, experimental findings, and hypotheses. We do not present proprietary AI ranking behavior as established fact without evidence.