--- title: "AI Search Glossary | 65 Concepts Across 56 Reference Pages — RankOnTime" url: "https://rankontime.com/glossary/" description: "65 definitions covering GEO, AEO, LLM SEO, crawling, entities, structured data and measurement — each with an interactive explainer." updated: "2026-11-08T12:57:23+00:00" --- # AI Search Glossary 65 concepts across 56 reference pages that do most of the work in AI search conversations — each defined plainly, with an interactive explainer you can actually click. Where the industry uses a term loosely, we say so rather than inventing a settled definition. [AEO](https://rankontime.com/glossary/geo/#aeo)[AI Citation](https://rankontime.com/glossary/ai-citation/)[AI Overviews](https://rankontime.com/glossary/ai-overviews/)[AI SEO](https://rankontime.com/glossary/geo/#ai-seo)[Answer-First Content](https://rankontime.com/glossary/answer-first-content/)[Attribution](https://rankontime.com/glossary/attribution/)[Branded Search Lift](https://rankontime.com/glossary/branded-search-lift/)[Canonicalization](https://rankontime.com/glossary/canonicalization/)[Citation Share](https://rankontime.com/glossary/citation-share/)[ClaudeBot](https://rankontime.com/glossary/claudebot/)[Client-Side Rendering](https://rankontime.com/glossary/client-side-rendering/)[Content Cannibalization](https://rankontime.com/glossary/content-cannibalization/)[Context Window](https://rankontime.com/glossary/context-window/)[Core Web Vitals](https://rankontime.com/glossary/core-web-vitals/)[Corroboration](https://rankontime.com/glossary/corroboration/)[Crawl Budget](https://rankontime.com/glossary/crawl-budget/)[Dark Traffic](https://rankontime.com/glossary/dark-traffic/)[E-E-A-T](https://rankontime.com/glossary/eeat/)[Entity](https://rankontime.com/glossary/entity/)[Entity Disambiguation](https://rankontime.com/glossary/entity/#entity-disambiguation)[FAQPage Schema](https://rankontime.com/glossary/faqpage-schema/)[Featured Snippet](https://rankontime.com/glossary/featured-snippet/)[Freshness](https://rankontime.com/glossary/freshness/)[GEO](https://rankontime.com/glossary/geo/)[Google-Extended](https://rankontime.com/glossary/google-extended/)[GPTBot](https://rankontime.com/glossary/gptbot/)[Grounding](https://rankontime.com/glossary/grounding/)[Hallucination](https://rankontime.com/glossary/hallucination/)[Index Bloat](https://rankontime.com/glossary/index-bloat/)[JavaScript SEO](https://rankontime.com/glossary/javascript-seo/)[JSON-LD](https://rankontime.com/glossary/json-ld/)[Knowledge Graph](https://rankontime.com/glossary/entity/#knowledge-graph)[Knowledge Panel](https://rankontime.com/glossary/entity/#knowledge-panel)[LLM SEO](https://rankontime.com/glossary/geo/#llm-seo)[llms.txt](https://rankontime.com/glossary/llms-txt/)[Log File Analysis](https://rankontime.com/glossary/log-file-analysis/)[Model Memory](https://rankontime.com/glossary/model-memory/)[Organization Schema](https://rankontime.com/glossary/organization-schema/)[Passage Extraction](https://rankontime.com/glossary/passage-extraction/)[People Also Ask](https://rankontime.com/glossary/people-also-ask/)[PerplexityBot](https://rankontime.com/glossary/perplexitybot/)[Product Schema](https://rankontime.com/glossary/product-schema/)[Programmatic SEO](https://rankontime.com/glossary/programmatic-seo/)[Prompt Set](https://rankontime.com/glossary/prompt-set/)[Query Fan-Out](https://rankontime.com/glossary/query-fan-out/)[RAG](https://rankontime.com/glossary/rag/)[Render Parity](https://rankontime.com/glossary/render-parity/)[Rich Results](https://rankontime.com/glossary/rich-results/)[robots.txt](https://rankontime.com/glossary/robots-txt/)[sameAs](https://rankontime.com/glossary/sameas/)[Schema Markup](https://rankontime.com/glossary/schema-markup/)[Search Intent](https://rankontime.com/glossary/search-intent/)[Semantic SEO](https://rankontime.com/glossary/semantic-seo/)[Server-Side Rendering](https://rankontime.com/glossary/server-side-rendering/)[Share of Voice](https://rankontime.com/glossary/citation-share/#share-of-voice)[Source Selection](https://rankontime.com/glossary/source-selection/)[Thin Content](https://rankontime.com/glossary/thin-content/)[Topic Cluster](https://rankontime.com/glossary/topic-cluster/)[Topical Authority](https://rankontime.com/glossary/topic-cluster/#topical-authority)[Topical Map](https://rankontime.com/glossary/topic-cluster/#topical-map)[Training Data](https://rankontime.com/glossary/training-data/)[Vector Embedding](https://rankontime.com/glossary/vector-embedding/)[XML Sitemap](https://rankontime.com/glossary/xml-sitemap/)[YMYL](https://rankontime.com/glossary/ymyl/)[Zero-Click Search](https://rankontime.com/glossary/zero-click/) ### Core AI search 9 [**GEO**GEO is optimizing so generative AI systems name your brand as a source when they compose an answer — competing…](https://rankontime.com/glossary/geo/)[**AEO**AEO is structuring content so an AI system can lift a clean, correct, self-contained answer straight out of yo…](https://rankontime.com/glossary/geo/#aeo)[**LLM SEO**LLM SEO is optimizing a brand for how language models find and attribute information, across two separate path…](https://rankontime.com/glossary/geo/#llm-seo)[**AI SEO**AI SEO is optimizing a brand to be found, understood, and cited by AI systems that generate answers, rather th…](https://rankontime.com/glossary/geo/#ai-seo)[**AI Overviews**AI Overviews are AI-generated summaries that appear above organic results in Google Search, answering the quer…](https://rankontime.com/glossary/ai-overviews/)[**Zero-Click Search**A zero-click search is one where the user gets their answer inside the search or chat interface and never visi…](https://rankontime.com/glossary/zero-click/)[**Citation Share**Citation share is the proportion of a fixed, benchmarked prompt set where your brand is named in the generated…](https://rankontime.com/glossary/citation-share/)[**Prompt Set**A prompt set is a fixed list of questions used to measure AI visibility consistently — the benchmark everythin…](https://rankontime.com/glossary/prompt-set/)[**AI Citation**An AI citation is when a generated answer names your brand or links your page as a source it drew on.…](https://rankontime.com/glossary/ai-citation/) ### Crawling & rendering 16 [**Crawl Budget**Crawl budget is the number of URLs a crawler will fetch from your site in a given period — set by what your se…](https://rankontime.com/glossary/crawl-budget/)[**Render Parity**Render parity is whether the content a crawler receives matches what a human's browser displays — and on moder…](https://rankontime.com/glossary/render-parity/)[**Server-Side Rendering**Server-side rendering means the server builds complete HTML before sending it, so any crawler receives your fu…](https://rankontime.com/glossary/server-side-rendering/)[**Client-Side Rendering**Client-side rendering means the server sends a near-empty shell and JavaScript builds the page in the browser …](https://rankontime.com/glossary/client-side-rendering/)[**JavaScript SEO**JavaScript SEO is the practice of making sites that depend on JavaScript readable by crawlers, most of which a…](https://rankontime.com/glossary/javascript-seo/)[**robots.txt**robots.txt is a plain text file at your domain root telling crawlers which paths they may fetch — including th…](https://rankontime.com/glossary/robots-txt/)[**GPTBot**GPTBot is OpenAI's web crawler, controllable through robots.txt, and documented as being used to gather traini…](https://rankontime.com/glossary/gptbot/)[**ClaudeBot**ClaudeBot is Anthropic's web crawler, controllable via robots.txt, with Claude-User handling fetches triggered…](https://rankontime.com/glossary/claudebot/)[**PerplexityBot**PerplexityBot is Perplexity's web crawler. Because Perplexity retrieves live on nearly every query, blocking i…](https://rankontime.com/glossary/perplexitybot/)[**Google-Extended**Google-Extended is a robots.txt directive controlling whether your content is eligible for Gemini grounding an…](https://rankontime.com/glossary/google-extended/)[**llms.txt**llms.txt is a proposed convention: a markdown file at your domain root summarising your site's key content for…](https://rankontime.com/glossary/llms-txt/)[**XML Sitemap**An XML sitemap is a file listing the URLs you want crawlers to know about, usually with a last-modified date f…](https://rankontime.com/glossary/xml-sitemap/)[**Canonicalization**Canonicalization is declaring which URL is the definitive version of a page when several URLs serve similar or…](https://rankontime.com/glossary/canonicalization/)[**Index Bloat**Index bloat is having large numbers of low-value, thin or near-duplicate pages in the index, diluting site qua…](https://rankontime.com/glossary/index-bloat/)[**Core Web Vitals**Core Web Vitals are Google's user-experience metrics: Largest Contentful Paint, Interaction to Next Paint, and…](https://rankontime.com/glossary/core-web-vitals/)[**Log File Analysis**Log file analysis is examining your server's request logs to see exactly which crawlers fetched which URLs, wh…](https://rankontime.com/glossary/log-file-analysis/) ### Entities & semantics 10 [**Entity**An entity is a distinct thing a system can identify and attach attributes to — a company, product, person or c…](https://rankontime.com/glossary/entity/)[**Knowledge Graph**A knowledge graph is a structured database of entities and the relationships between them, used to answer ques…](https://rankontime.com/glossary/entity/#knowledge-graph)[**sameAs**sameAs is a schema.org property that links your entity to its verified profiles elsewhere, telling systems the…](https://rankontime.com/glossary/sameas/)[**Entity Disambiguation**Entity disambiguation is the work of separating your brand from other things sharing its name, so systems attr…](https://rankontime.com/glossary/entity/#entity-disambiguation)[**Semantic SEO**Semantic SEO is optimizing for meaning and relationships between concepts rather than for keyword matching.…](https://rankontime.com/glossary/semantic-seo/)[**Topical Authority**Topical authority is being treated as a credible source on a subject — earned through complete, well-structure…](https://rankontime.com/glossary/topic-cluster/#topical-authority)[**Topical Map**A topical map is a defined structure of your subject domain — every concept within it, how they relate, and wh…](https://rankontime.com/glossary/topic-cluster/#topical-map)[**Topic Cluster**A topic cluster is a pillar page covering a broad topic plus supporting pages covering its sub-topics, all int…](https://rankontime.com/glossary/topic-cluster/)[**Vector Embedding**A vector embedding represents a piece of text as a list of numbers that captures its meaning, so systems can c…](https://rankontime.com/glossary/vector-embedding/)[**Knowledge Panel**A knowledge panel is the information box Google shows for a recognised entity, drawn from its Knowledge Graph.…](https://rankontime.com/glossary/entity/#knowledge-panel) ### Structured data 6 [**Schema Markup**Schema markup is structured data added to a page that states facts about it — price, author, organisation, ava…](https://rankontime.com/glossary/schema-markup/)[**JSON-LD**JSON-LD is the recommended format for structured data: a block of JSON in a script tag describing what a page …](https://rankontime.com/glossary/json-ld/)[**Organization Schema**Organization schema is structured data declaring your company's identity — name, description, logo, contact de…](https://rankontime.com/glossary/organization-schema/)[**Product Schema**Product schema is structured data declaring a product's facts — name, brand, price, availability, condition, i…](https://rankontime.com/glossary/product-schema/)[**FAQPage Schema**FAQPage schema is structured data declaring that a page contains genuine question-and-answer pairs, making the…](https://rankontime.com/glossary/faqpage-schema/)[**Rich Results**Rich results are enhanced search listings — star ratings, prices, FAQs, recipes, events — generated from struc…](https://rankontime.com/glossary/rich-results/) ### Content & structure 12 [**Answer-First Content**Answer-first content states the answer in the opening sentence of each section, then provides context and supp…](https://rankontime.com/glossary/answer-first-content/)[**Passage Extraction**Passage extraction is when a retrieval system selects a specific chunk of your page rather than the whole docu…](https://rankontime.com/glossary/passage-extraction/)[**Featured Snippet**A featured snippet is the answer box Google displays above organic results, quoting a passage from a page it c…](https://rankontime.com/glossary/featured-snippet/)[**People Also Ask**People Also Ask is Google's expandable box of related questions, each revealing a short extracted answer from …](https://rankontime.com/glossary/people-also-ask/)[**Query Fan-Out**Query fan-out is when a system decomposes a single question into multiple sub-queries, retrieves for each, and…](https://rankontime.com/glossary/query-fan-out/)[**Search Intent**Search intent is what the person actually wants from a query — information, a specific site, a comparison, or …](https://rankontime.com/glossary/search-intent/)[**Content Cannibalization**Content cannibalization is when several pages on your own site target the same intent, splitting signals so no…](https://rankontime.com/glossary/content-cannibalization/)[**Thin Content**Thin content is a page offering little value relative to what already exists on the topic — a judgement about …](https://rankontime.com/glossary/thin-content/)[**Programmatic SEO**Programmatic SEO is generating pages at scale from a dataset and a template — one page per row — which works b…](https://rankontime.com/glossary/programmatic-seo/)[**Freshness**Freshness is how recently content was genuinely updated — and how clearly that update is signalled to crawlers…](https://rankontime.com/glossary/freshness/)[**E-E-A-T**E-E-A-T stands for Experience, Expertise, Authoritativeness and Trust — Google's framework for assessing wheth…](https://rankontime.com/glossary/eeat/)[**YMYL**YMYL — Your Money or Your Life — covers topics that could materially affect someone's health, financial stabil…](https://rankontime.com/glossary/ymyl/) ### How models work 8 [**RAG**RAG (Retrieval-Augmented Generation) is when a system searches for relevant documents, feeds them to a languag…](https://rankontime.com/glossary/rag/)[**Grounding**Grounding is constraining a model's answer to retrieved source material rather than letting it generate from m…](https://rankontime.com/glossary/grounding/)[**Model Memory**Model memory is what a language model carries from its training data — the impression it has of your brand whe…](https://rankontime.com/glossary/model-memory/)[**Hallucination**A hallucination is when a language model states something false or fabricated with the same confidence it stat…](https://rankontime.com/glossary/hallucination/)[**Source Selection**Source selection is how an AI system decides which of the documents it retrieved actually get cited in the ans…](https://rankontime.com/glossary/source-selection/)[**Corroboration**Corroboration is multiple independent, credible sources stating the same fact — which is what converts a claim…](https://rankontime.com/glossary/corroboration/)[**Training Data**Training data is the body of text a model learned from — and it determines what the model knows about your bra…](https://rankontime.com/glossary/training-data/)[**Context Window**A context window is the maximum amount of text a model can hold in view at once — the prompt, retrieved docume…](https://rankontime.com/glossary/context-window/) ### Measurement 4 [**Attribution**Attribution is assigning credit for a conversion to the marketing touchpoints that influenced it — a model tha…](https://rankontime.com/glossary/attribution/)[**Branded Search Lift**Branded search lift is an increase in searches for your brand name, which frequently indicates discovery happe…](https://rankontime.com/glossary/branded-search-lift/)[**Dark Traffic**Dark traffic is visits that arrive with no identifiable referrer and get bucketed as direct, even though they …](https://rankontime.com/glossary/dark-traffic/)[**Share of Voice**Share of voice is your visibility as a proportion of the total available in a category — in AI search, the sha…](https://rankontime.com/glossary/citation-share/#share-of-voice) Free 12-point check ## Send Ron your site Two fields. We’ll crawl your site as GPTBot, ClaudeBot and PerplexityBot, benchmark a sample of your category’s prompts, and send you what we find. - What each AI crawler actually receives from your site - Whether models resolve your brand as a real entity - A sample of category prompts and who gets cited - The three fixes we’d prioritise first No commitment, no sales sequence. If we’re not a fit, we’ll say so.