---
title: "AuthorityTech Glossary"
description: "Definitions for Machine Relations terminology and AI visibility concepts."
canonical: https://authoritytech.io/glossary
---

# AuthorityTech Glossary

Definitions for Machine Relations terminology and AI visibility concepts.

Canonical URL: https://authoritytech.io/glossary

## Terms

- [Agentic Commerce](https://authoritytech.io/glossary/agentic-commerce.md): Agentic commerce is the paradigm where AI agents autonomously research products, negotiate terms, and complete purchases
- [Agentic Procurement](https://authoritytech.io/glossary/agentic-procurement.md): The emerging practice of AI agents autonomously evaluating, shortlisting, and selecting B2B vendors — Gartner predicts 9
- [Agentic Retrieval](https://authoritytech.io/glossary/agentic-retrieval.md): An architectural pattern where an LLM-powered agent dynamically controls the information retrieval process, deciding whe
- [AI Brand Authority](https://authoritytech.io/glossary/ai-brand-authority.md): The aggregate trust signal a brand accumulates across AI engines that determines whether it gets recommended — not just 
- [AI Brand Mentions](https://authoritytech.io/glossary/ai-brand-mentions.md): Any instance where an AI system names, recommends, or references a brand in a generated response — the foundational sign
- [AI Citation](https://authoritytech.io/glossary/ai-citation.md): A reference to a brand, product, or source within an AI-generated response — the fundamental unit of authority in machin
- [AI Citations](https://authoritytech.io/glossary/ai-citations.md): The references AI engines surface in generated answers, shaped by source trust, freshness, and cross-domain corroboratio
- [AI Extractability](https://authoritytech.io/glossary/ai-extractability.md): The degree to which a content section can be parsed, compressed, and reused by AI systems without losing its core meanin
- [AI Mention Rate](https://authoritytech.io/glossary/ai-mention-rate.md): The percentage of relevant AI queries that mention your brand in any context — the baseline visibility metric that estab
- [AI Overviews](https://authoritytech.io/glossary/ai-overviews.md): Google's AI-generated summaries that appear above traditional search results, synthesizing answers from multiple web sou
- [AI PR Agency](https://authoritytech.io/glossary/ai-pr-agency.md): An AI PR agency is a public relations firm built for AI-mediated discovery. It earns credible third-party coverage, stru
- [AI Referral Traffic](https://authoritytech.io/glossary/ai-referral-traffic.md): Website traffic sent directly from AI engines — ChatGPT, Perplexity, Claude, Gemini, and Google AI Overviews — when user
- [AI Search Market Share](https://authoritytech.io/glossary/ai-search-market-share.md): AI search market share measures how user sessions, referral traffic, and query volume are distributed across AI answer e
- [AI Share of Voice](https://authoritytech.io/glossary/share-of-voice.md): The percentage of AI-generated responses in your category that mention or recommend your brand versus competitors — the 
- [AI Trust Signals](https://authoritytech.io/glossary/ai-trust-signals.md): AI trust signals are the credibility markers that AI search engines evaluate when deciding which sources to retrieve, se
- [AI Visibility](https://authoritytech.io/glossary/ai-visibility.md): AI visibility is the measurement of whether AI answer engines cite, mention, or recommend your brand when buyers ask cat
- [AI Visibility Score](https://authoritytech.io/glossary/ai-visibility-score.md): A brand's measurable presence across AI platforms — the composite metric that replaces impressions as the key Machine Re
- [Algorithm Credibility Moat](https://authoritytech.io/glossary/algorithm-credibility-moat.md): The compounding advantage brands build when AI engines consistently cite them, where each citation reinforces the next a
- [Answer Engine Optimization (AEO)](https://authoritytech.io/glossary/answer-engine-optimization.md): Answer Engine Optimization is the practice of making content eligible, understandable, and authoritative enough to be se
- [Answer-First Content](https://authoritytech.io/glossary/answer-first-content.md): Content that delivers its core claim or answer in the opening sentences rather than after narrative buildup, maximizing 
- [Attribution Magnet](https://authoritytech.io/glossary/attribution-magnet.md): A data point, quote, statistic, or named framework designed to be extracted and cited by AI engines in generated respons
- [Brand Web Mentions](https://authoritytech.io/glossary/brand-web-mentions.md): Unlinked text references to a brand name across the open web — news articles, publications, forums, YouTube, reviews, an
- [Citation Architecture](https://authoritytech.io/glossary/citation-architecture.md): The practice of engineering content so AI systems can extract, verify, and cite specific claims, data points, and recomm
- [Citation Decay](https://authoritytech.io/glossary/citation-decay.md): The measurable rate at which AI citation frequency drops when a brand stops producing fresh content — Perplexity citatio
- [Citation Economy](https://authoritytech.io/glossary/citation-economy.md): The emerging attention system where AI engines distribute discovery and demand through citations rather than links — cha
- [Citation Eligibility](https://authoritytech.io/glossary/citation-eligibility.md): Citation eligibility is the threshold a source must clear before AI retrieval systems will select it as a cited referenc
- [Citation Gap Analysis](https://authoritytech.io/glossary/citation-gap-analysis.md): The process of identifying where competitors are cited by AI engines and your brand is not — the AI-era equivalent of co
- [Citation Rate](https://authoritytech.io/glossary/citation-rate.md): Citation rate is the percentage of AI answer sessions in which a specific source domain is cited. It is the fundamental 
- [Citation Share](https://authoritytech.io/glossary/citation-share.md): Your brand's share of total category citations in AI-generated answers — the AI-era market share metric that reveals com
- [Citation Velocity](https://authoritytech.io/glossary/citation-velocity.md): The rate at which AI citations for a brand increase over time — the compounding growth metric that separates sustained a
- [Citation Window](https://authoritytech.io/glossary/citation-window.md): The narrowing period of opportunity to establish entity authority in AI engines before competitive citation patterns loc
- [Content Freshness](https://authoritytech.io/glossary/content-freshness.md): The recency signal AI engines use to prioritize sources, where content updated within the last 90 days is cited at signi
- [Dark Funnel](https://authoritytech.io/glossary/dark-funnel.md): Buyer research activity occurring outside tracked channels — now predominantly in AI tools where 68% of B2B buyers begin
- [Digital PR](https://authoritytech.io/glossary/digital-pr.md): A strategic communications discipline focused on earning online media coverage, authoritative backlinks, and brand menti
- [Earned Authority](https://authoritytech.io/glossary/earned-authority.md): Third-party credibility signals — tier-1 media placements, expert citations, independent reviews — that AI engines weigh
- [Earned Media](https://authoritytech.io/glossary/earned-media.md): Media coverage, mentions, and citations that a brand receives through editorial merit rather than paid placement — the p
- [Entity Chain](https://authoritytech.io/glossary/entity-chain.md): An entity chain is the network of independent, cross-domain mentions that lets AI retrieval systems verify that a brand,
- [Entity Chains](https://authoritytech.io/glossary/entity-chains.md): An entity chain is the linked set of cross-domain references, structured data connections, earned media mentions, and kn
- [Entity Clarity](https://authoritytech.io/glossary/entity-clarity.md): The degree to which a brand's identity is machine-readable — consistently resolved, attributed, and categorized by AI sy
- [Entity Concentration](https://authoritytech.io/glossary/entity-concentration.md): The winner-take-most dynamic in AI search where a small number of dominant brands capture a disproportionate share of AI
- [Entity Mass](https://authoritytech.io/glossary/entity-mass.md): Entity mass is the aggregate of explicit entity declarations, structured data, cross-domain references, and sameAs netwo
- [Entity Optimization](https://authoritytech.io/glossary/entity-optimization.md): The practice of structuring a brand's digital identity so AI systems can resolve, verify, and cite it consistently acros
- [Entity Resolution](https://authoritytech.io/glossary/entity-resolution.md): The process by which an AI system determines that multiple cross-web references — a LinkedIn company page, a news articl
- [Entity Resolution Rate](https://authoritytech.io/glossary/entity-resolution-rate.md): A Machine Relations metric, coined by Jaxon Parrott, that measures the percentage of AI-engine queries in which a brand 
- [Entity Signals](https://authoritytech.io/glossary/entity-signals.md): Structured data and digital presence markers that help AI engines identify, understand, and trust a brand as a distinct 
- [Extractable Content](https://authoritytech.io/glossary/extractable-content.md): Content structured so AI engines can pull self-contained, verifiable claims from it — typically 40-60 word answer blocks
- [Generative Engine Optimization (GEO)](https://authoritytech.io/glossary/generative-engine-optimization.md): The practice of structuring content to maximize visibility and citation in AI-generated answers across generative search
- [GEO](https://authoritytech.io/glossary/geo.md): Generative Engine Optimization — the practice of structuring and distributing content so generative AI engines cite it i
- [GEO Agency](https://authoritytech.io/glossary/geo-agency.md): A firm specializing in generative engine optimization — structuring content, earning authority, and building entity sign
- [GEO vs AEO vs SEO](https://authoritytech.io/glossary/geo-vs-aeo-vs-seo.md): The distinction between three search optimization disciplines: SEO (Search Engine Optimization) targets ranked positions
- [Google AI Mode](https://authoritytech.io/glossary/google-ai-mode.md): Google AI Mode is Google's conversational AI search experience that synthesizes multi-turn answers from web sources, cit
- [Hallucinated Citation](https://authoritytech.io/glossary/hallucinated-citation.md): An AI-invented reference to a non-existent source, fabricated statistic, or misattributed claim — 31% of AI citations ab
- [Inference Economics](https://authoritytech.io/glossary/inference-economics.md): The cost structure, throughput dynamics, and resource allocation governing how trained AI models process queries at scal
- [Machine Gatekeeper](https://authoritytech.io/glossary/machine-gatekeeper.md): An AI system that decides which brands, products, and sources get recommended to users — the algorithmic successor to hu
- [Machine Relations (MR)](https://authoritytech.io/glossary/machine-relations.md): The category-defining discipline of earning AI engine citations and recommendations — the evolution from PR (convincing 
- [Machine Relations Index (MRI)](https://authoritytech.io/glossary/machine-relations-index.md): The Machine Relations Index (MRI) is a public source-behavior dataset that tracks which root domains AI answer engines c
- [Machine Relations Stack](https://authoritytech.io/glossary/machine-relations-stack.md): AuthorityTech's five-layer strategic framework for AI visibility: Earned Authority, Entity Optimization, Citation Archit
- [Machine Resolution](https://authoritytech.io/glossary/machine-resolution.md): The process by which an AI engine moves from vague awareness of a brand to confident citation, the moment a machine tran
- [MRI Score](https://authoritytech.io/glossary/mri-score.md): MRI Score is the Machine Relations Index metric for AI source authority. It reports how often AI answer engines cite eac
- [Multi-Engine Strategy](https://authoritytech.io/glossary/multi-engine-strategy.md): The practice of optimizing for multiple AI platforms simultaneously, accounting for each engine's distinct citation pref
- [Owned Media Network](https://authoritytech.io/glossary/owned-media-network.md): An owned media network is a coordinated group of digital properties that a single brand or organization controls, publis
- [Performance PR](https://authoritytech.io/glossary/performance-pr.md): A pay-per-placement public relations model that guarantees measurable media results, replacing the traditional retainer 
- [Perplexity Ranking](https://authoritytech.io/glossary/perplexity-ranking.md): Perplexity ranking is the process by which Perplexity AI selects which web sources to cite in its generated answers. Unl
- [PR 2.0 (PR 2.0)](https://authoritytech.io/glossary/pr-2-0.md): Shorthand for Machine Relations — the evolution of public relations from convincing human journalists to convincing AI e
- [PR Agency Bifurcation](https://authoritytech.io/glossary/pr-agency-bifurcation.md): The structural split of the PR industry into traditional agencies in decline and Machine Relations-oriented agencies in 
- [PR for AI Search](https://authoritytech.io/glossary/pr-for-ai-search.md): PR for AI search is the practice of earning third-party media coverage and expert citations that AI systems retrieve whe
- [PR for Machine Readers](https://authoritytech.io/glossary/pr-for-machine-readers.md): Public relations strategy designed to produce coverage that AI engines can retrieve, extract, and cite — prioritizing ea
- [Publication Velocity](https://authoritytech.io/glossary/publication-velocity.md): The cadence at which a brand publishes citation-grade content and earns media placements, directly correlated with the s
- [Recommendation Rate](https://authoritytech.io/glossary/recommendation-rate.md): The frequency at which AI engines actively recommend a brand when prompted with relevant purchase-intent queries — the h
- [Retrieval Eligibility](https://authoritytech.io/glossary/retrieval-eligibility.md): The set of technical, structural, and authority conditions a piece of content must meet before AI search engines will in
- [Retrieval-Augmented Generation (RAG)](https://authoritytech.io/glossary/retrieval-augmented-generation.md): An AI architecture that retrieves relevant documents from external sources before generating a response, grounding answe
- [Sentiment Delta](https://authoritytech.io/glossary/sentiment-delta.md): Sentiment Delta measures the gap between intended brand positioning and actual AI-generated brand description across Cha
- [Share of AI Citation](https://authoritytech.io/glossary/share-of-ai-citation.md): The percentage of AI-generated answers that cite a brand, page, or source as a result of PR and earned media activity — 
- [Share of Citation](https://authoritytech.io/glossary/share-of-citation.md): The percentage of total AI engine citations your brand earns within a defined category or query set — the Machine Relati
- [Source Architecture](https://authoritytech.io/glossary/source-architecture.md): Source architecture is the deliberate design of a brand's distributed evidence ecosystem so AI retrieval systems can fin
- [Source Authority](https://authoritytech.io/glossary/source-authority.md): The composite trust signal that determines whether an AI search engine cites a specific source when generating answers. 
- [Source Credibility](https://authoritytech.io/glossary/source-credibility.md): Source credibility is the trust score AI engines assign to a content source when deciding what to cite in generated answ
- [Tier-1 Publications](https://authoritytech.io/glossary/tier-1-publications.md): High-authority media outlets — Forbes, TechCrunch, WSJ, Reuters, The Guardian — that AI engines retrieve and cite at 3-5
- [Topical Authority](https://authoritytech.io/glossary/topical-authority.md): Topical authority is the degree to which search engines and AI retrieval systems recognize a website as the expert sourc
- [Zero-Click PR](https://authoritytech.io/glossary/zero-click-pr.md): Earned media impact that occurs entirely within AI interfaces — brand awareness, trust, and demand generated when AI eng
- [Zero-Click Search](https://authoritytech.io/glossary/zero-click-search.md): A search where the user receives a complete answer directly in the results interface without clicking through to any web

## Links

- [Home](https://authoritytech.io/index.md)
- [Machine Relations Glossary](https://machinerelations.ai/glossary.md)