The Language of AI Visibility

Every term, metric, and platform feature — organized by what matters. From the concepts shaping AI discovery to the tools that move the numbers.

Browse concepts ↓
Total Concepts 58 Defined
Categories 7 Areas Expanding
Coverage Industry + Platform
Last Updated Feb 2026
Sources Marketing + Platform
Active Reference
Quick Glossary Available
CORE CONCEPTS

The Foundation of AI Visibility

The concepts that define the category. If you're new to AI visibility, start here.

AEO (AI Engine Optimization)

visibl

The practice of optimizing content and digital presence to improve visibility within AI-powered search engines and assistants. Think SEO, but for ChatGPT, Gemini, and Perplexity. Instead of ranking on a list, you're getting cited in an answer.

AI Visibility

visibl

Whether and how AI engines mention, recommend, or cite your brand when users ask relevant questions. The new layer of digital presence beyond traditional search rankings. You can rank #1 on Google and still be invisible to AI.

Ghost Routes

visibl

Pages that rank well in Google Search Console but have zero presence in AI-generated answers. A term coined by visibl to describe the gap between traditional search performance and AI discovery. Your traffic looks healthy, but it's at risk.

AI Share of Voice

visibl

How often AI engines recommend your brand versus competitors in your category. Position 1 on Google doesn't mean you're in the AI answer. 0% AI Share of Voice means you're not even in the running.

Revenue at Risk

visibl

Estimated monthly revenue exposure from pages that aren't being cited in AI recommendations. Calculated by syncing Stripe transaction data with AI citation rates — verified numbers, not estimates.

Core

Discovery Layer

The interface through which users find information. It's shifting from traditional search (Google's ten blue links) to AI-powered synthesized answers (ChatGPT, Gemini, Perplexity). The discovery layer determines who gets found.

Core

Indexing Gap

The difference between what traditional search engines index and what AI engines can access and cite. Many pages indexed by Google are completely invisible to AI retrieval systems. This gap is where Ghost Routes live.

Core
AI & LLM FUNDAMENTALS

How AI Engines Actually Work

The mechanics behind AI-generated answers. Understanding these makes everything else click.

LLM (Large Language Model)

The AI models powering answer engines — GPT-4, Gemini, Claude, Llama. They generate text by predicting what comes next, drawing on training data and (increasingly) real-time retrieval. Understanding how LLMs prioritize information is the foundation of AEO.

Fundamentals

RAG (Retrieval-Augmented Generation)

A technique where AI engines retrieve relevant documents in real-time to augment their responses. RAG is why fresh, well-structured content matters — it's not baked into the model, it's pulled live. If your content isn't RAG-friendly, it doesn't get cited.

Fundamentals

Hallucination

When an AI engine generates information that isn't supported by its training data or retrieved sources. Can result in incorrect brand mentions, fabricated product claims, or confidently wrong recommendations. Grounding reduces hallucination risk.

Fundamentals

Grounding

The process by which AI engines verify generated answers against source material. Well-grounded responses include citations and factual claims; poorly grounded ones hallucinate. Your content's structure directly affects how well it can ground an AI response.

Fundamentals

Training Cutoff

The date after which an LLM has no inherent knowledge. Content published after the cutoff relies entirely on RAG for AI visibility. If your latest product launch happened after the cutoff, it's invisible unless retrieved in real-time.

Fundamentals

Model Training Data

The corpus of text used to train an LLM. Content in training data may influence an AI engine's baseline knowledge about a brand, separate from real-time retrieval. Think of it as the model's "memory" before it looks anything up.

Fundamentals

Prompt Sensitivity

How variations in user queries affect which brands and sources an AI engine cites. The same question phrased differently can produce completely different brand recommendations. "Best CRM" and "CRM for small teams" might cite entirely different products.

Fundamentals
METRICS & SCORING

How We Measure AI Visibility

The numbers that tell you where you stand. Every metric in the visibl dashboard, explained.

Visibility Score (0–100)

visibl

The primary KPI. A composite metric measuring your brand's overall presence across AI engines. Combines four weighted components: Mention Rate (0–30), Mention Depth (0–15), Sentiment (0–15), and Product Component (0–40).

Metrics

Mention Rate

visibl

Percentage of AI responses that mention your brand, weighted up to 30 points in the Visibility Score. If you're mentioned in 60% of relevant queries, that's a strong signal. 0% means you're a Ghost Route.

Metrics

Mention Depth

visibl

How many times you're mentioned per AI response, worth up to 15 points. Being mentioned once in passing is different from being featured as the primary recommendation with detailed context.

Metrics

Sentiment (AI)

visibl

How favorably AI engines describe your brand when they mention it. Classified as Positive, Neutral, Negative, or Mixed. Worth up to 15 points. Being mentioned isn't enough — being mentioned well is what drives conversions.

Metrics

Product Component Score

visibl

Average product-level visibility, weighted up to 40 points — the heaviest component of the Visibility Score. Measures how individual products or offerings perform across AI engines, not just the brand overall.

Metrics

Market Presence

visibl

Percentage of tested prompts where your brand gets mentioned. A straightforward coverage metric — out of all the ways someone could ask about your category, how often do you show up?

Metrics

Gap Score

visibl

High organic traffic + low AI visibility = high gap score. Identifies your biggest optimization opportunities — pages where you're already winning in traditional search but losing in AI discovery.

Metrics

Schema Health Score

visibl

A 0–100 assessment of your JSON-LD structured data quality. Measures completeness, accuracy, and optimization of schema markup — the technical foundation that makes your content machine-readable to AI systems.

Metrics

AI Penetration Rate

visibl

Percentage of your total traffic that comes from AI referrer domains (ChatGPT, Perplexity, etc.). Tracks how much of your audience is discovering you through AI channels versus traditional search.

Metrics
PLATFORM FEATURES

Inside the visibl Platform

Every tool and workspace in visibl. From monitoring to execution — what each feature actually does.

Actions Lab

visibl

Split-pane execution workspace. Strategy on the left (citation gaps, Ghost Routes, Revenue at Risk per URL). Execution on the right (auto-generated schema, content templates, protocol updates). Deploy fixes without developer tickets.

Platform

Content Studio

visibl

AI-powered content creation workspace for producing AEO-optimized articles. Includes collaborative editing, section management, version history, and multiple export formats. Publication workflows from draft to live.

Platform

Prompt Blast

visibl

Bulk prompt execution campaign. Run hundreds of test queries across multiple AI engines simultaneously to measure visibility at scale. Think of it as a crawl, but for AI answers instead of web pages.

Platform

Product Lab

visibl

Product-level management and visibility tracking. Monitor individual SKUs across AI engines, track per-product visibility scores, and identify which products need attention versus which are already being recommended.

Platform

AI Agent (visibl)

visibl

In-platform AI assistant that answers questions about your visibility data, generates recommendations, and navigates you to relevant dashboard views. Multi-step task automation with deep context about your brand's AI presence.

Platform

Watchlist

visibl

Monitor specific brands and competitors in real-time. Track their AI mention trends, citation changes, and competitive movements. Get alerted when a competitor's visibility shifts meaningfully.

Platform

Playbook

visibl

AI-generated action plans based on your visibility data. Prioritized recommendations for on-site fixes, off-site opportunities, PR plays, social signals, and technical improvements — ranked by expected impact.

Platform

Authority Lab

visibl

Analyzes which high-authority sources get cited alongside your brand in AI responses. Uses Tranco domain rankings to identify where you should be mentioned — and where you're missing. The citation network that matters for AI.

Platform

Priority Intelligence

visibl

You have 1M+ pages. visibl finds the 50 that actually move the needle. Automated page prioritization that combines AI citation volume, revenue attribution, and optimization gap into a single ranked list.

Platform Learn more →

Unified Command

visibl

One dashboard for every team Normalizes data from different tools into a shared vocabulary so SEO, dev, marketing, content, and analytics teams all operate from the same definition of success.

Platform Learn more →

Instant Deploy

visibl

Push fixes live — no dev tickets. Collapses the timeline from the typical 90-day sprint cycle to seconds. See a schema issue, fix it, deploy it. All from the same interface.

Platform Learn more →

Zero-Queue Execution

visibl

Skip the backlog, deploy directly The traditional workflow — Jira tickets, sprint slots, QA cycles, deployment windows — takes 90 days for a 30-second fix. Zero-Queue removes the queue entirely.

Platform Learn more →
COMMERCE & PROTOCOLS

AI Agents Are Already Buying

The protocols, standards, and concepts behind AI-powered shopping. Where e-commerce meets autonomous agents.

Agentic Commerce

The emerging channel where AI shopping agents — like OpenAI Operator and Google Shopping AI — autonomously browse, compare, and purchase products on behalf of users. The next evolution of e-commerce, where the buyer is an algorithm.

Commerce Learn more →

ACP (Agent Commerce Protocol)

OpenAI's standard for how AI shopping agents discover and transact with online stores. Defines how products are surfaced, compared, and purchased through ChatGPT Shopping and related agent interfaces.

Commerce

UCP (Unified Commerce Protocol)

Google's standard for how AI agents discover, evaluate, and transact with products across their ecosystem. Works through Google Merchant Center and Google Shopping AI. The other half of the dual-protocol landscape.

Commerce

Inventory-Aware AEO

visibl

Preventing AI agents from recommending products you can't ship. visibl syncs Google Merchant Center and Shopify feeds so out-of-stock items aren't surfaced in AI shopping recommendations.

Commerce

Catalog Readiness

visibl

How prepared your product catalog is for AI agent evaluation. Covers data quality (titles, descriptions, attributes), machine readability (schema, feeds, APIs), and trust signals (reviews, ratings, inventory status).

Commerce Learn more →
TECHNICAL

The Infrastructure of AI Discovery

The structural and technical concepts that determine whether AI engines can find, understand, and cite your content.

AI Crawlability

How accessible your content is to AI systems that index and retrieve information for generating answers. Not the same as Google crawlability. A page can be perfectly crawlable by Googlebot and completely invisible to AI retrieval systems.

Technical

Semantic Structure

How content is organized to help AI engines understand topics, relationships, and hierarchy. Clean headings, logical sections, clear definitions before jargon. The better the structure, the easier it is for AI to extract and cite your content.

Technical

JSON-LD Schema

Structured data markup embedded in your pages that tells AI engines exactly what your content is about. Product specs, FAQ answers, organization details, article metadata — all in a format machines read natively. The technical backbone of AEO.

Technical

Entity Recognition

How AI engines identify and categorize brands, products, and topics within content. Strong entity recognition — consistent naming, clear definitions, structured markup — increases the likelihood of being cited correctly.

Technical

Knowledge Graph

A structured database of entities and their relationships that AI engines use to understand and connect concepts. Being represented in knowledge graphs increases AI visibility. It's how AI knows that "visibl" is a company, not just a word.

Technical

Topical Authority

The degree to which AI engines recognize a domain as an expert source on a specific subject. Built through comprehensive, interlinked content clusters — not individual pages, but a body of work that signals deep expertise.

Technical

Citation

When an AI engine references a specific source (URL, brand, or content piece) in its generated answer. The AI equivalent of a backlink. Source attribution is the currency of AI visibility — no citation, no credit.

Technical

Content Authority Signals

Indicators that help AI engines determine which sources to trust and cite. Includes domain expertise, content depth, editorial standards, authorship credentials, and third-party validation. The trust layer that separates cited sources from ignored ones.

Technical
AI ENGINES & PROVIDERS

The Engines That Matter

The AI platforms visibl monitors. Each engine discovers, processes, and recommends content differently.

ChatGPT

General AI

OpenAI's conversational AI. The largest consumer AI platform by users. ChatGPT's recommendations carry weight because hundreds of millions of people ask it questions daily. Now includes Shopping features for product discovery.

AI Engine

Gemini

General AI

Google's AI model family. Integrated into Google Search, Workspace, and Android. Matters because it has direct access to Google's search index and knowledge graph — the largest information retrieval system on earth.

AI Engine

Perplexity

Search AI

AI-native search engine that cites sources prominently. Unlike ChatGPT, Perplexity always attributes answers to specific URLs. High-value for brands because citations drive direct traffic — the closest AI equivalent to a Google search result.

AI Engine

Grok

General AI

xAI's conversational model, integrated into the X (Twitter) platform. Access to real-time social data gives it unique context about trending topics, sentiment, and brand mentions that other models lack.

AI Engine

Claude

General AI

Anthropic's AI assistant. Known for careful, well-sourced responses and strong reasoning capabilities. Growing market share in enterprise and developer contexts, making it increasingly relevant for B2B brand visibility.

AI Engine

Google AI Overviews

Search AI

AI-generated answer summaries that appear at the top of Google Search results. The most impactful AI surface for most brands because it sits directly in the search flow billions of people already use daily.

AI Engine

SearchGPT

Search AI

OpenAI's dedicated search product. Combines the conversational interface of ChatGPT with real-time web retrieval and source attribution. A direct competitor to Google Search, with growing adoption.

AI Engine

Amazon Rufus

Retail AI

Amazon's AI shopping assistant. Helps shoppers compare products, understand features, and make purchasing decisions within the Amazon ecosystem. For e-commerce brands, Rufus is where product visibility meets purchase intent.

AI Engine

Walmart AI

Retail AI

Walmart's AI-powered product discovery and recommendation system. A key retail AI surface for brands selling through Walmart's marketplace, with autonomous product comparison and purchase assistance.

AI Engine

AI Answer Engine

The category itself. Any search interface that generates synthesized answers using large language models instead of returning a list of links. ChatGPT, Perplexity, Google AI Overviews — they're all answer engines. This is the new battleground.

AI Engine

See These Concepts in Action

Every concept here lives inside the visibl platform. Book a demo and see how they work together.