> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onsomble.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Definitions of the terms you'll encounter across Onsomble's product and documentation.

A compact reference for the vocabulary used throughout Onsomble.

## Core concepts

**AI discoverability**
How well a business shows up when customers ask AI assistants for recommendations, comparisons, or answers. The industry calls the practice of improving it AEO (Answer Engine Optimisation), GEO (Generative Engine Optimisation), or LLMO (LLM Optimisation). See [What is AI discoverability?](/reference/what-is-aeo).

**Site**
The workspace for a single business website or brand presence in Onsomble. All discoverability setup, scan history, and insights are scoped to a Site. One business with one website is one Site. See [What is a Site?](/sites/what-is-a-site).

## Discoverability terms

**Scan**
A run of the discoverability check. Onsomble sends each active prompt to each enabled AI model, captures the responses, and refreshes the Site's insights. Scans can run ad-hoc or on a recurring schedule.

**Prompt**
A realistic question a customer might ask an AI assistant. Prompts are the inputs each scan runs against. A scan usually includes ten to fifteen prompts covering different customer intents.

**Prompt library**
The set of prompts Onsomble runs during scans for a Site. The library can be edited at any time to reflect changes in what customers are asking or what the business wants to measure.

**Model**
An AI assistant Onsomble queries during a scan: currently ChatGPT, Claude, Gemini, and Perplexity. Each scan can target one model or multiple.

**Citation**
A mention of the business in an AI assistant's response, or a source the assistant links when making one. See [References](/results/references) for how citations are analysed.

**Visibility**
How often the business appears in AI answers across the prompts in a scan. The foundational discoverability metric, tracked over time on the [Brand Scorecard](/results/brand-scorecard).

**Share of voice**
When the business is mentioned, how much of the AI answer is about it, as opposed to competitors mentioned in the same answer. Distinct from visibility: you can appear often but have low share of voice if each mention is only a one-line reference.

**Gap**
The remaining visibility opportunity: how far the business sits behind its strongest competitor. Lower is better.

**Health**
A composite score across visibility, citations, share of voice, and competitor gap. The single-number summary of a brand's AI discoverability.

**Sentiment**
Whether descriptions of the business across a scan are positive, neutral, or negative. Most descriptions sit in neutral; the outliers are what warrant attention.

**Competitor**
A business Onsomble measures yours against during each scan. Competitors drive citation benchmarks, share of voice, and sentiment comparisons. See [Setting up a scan](/scans/how-scans-work).

**Recommendation**
A specific, prioritised action Onsomble suggests based on scan results: a content gap to close, an inaccuracy to correct, a positioning improvement to make, and so on. See [Acting on recommendations](/results/recommendations).

**Ingestion**
The process Onsomble uses to crawl and understand a business's website. Ingestion informs competitor suggestions and prompt suggestions. See [Ingesting your website](/sites/site-setup-and-profile).

## Account and agency terms

**Agency account**
A type of Onsomble account designed for managing a portfolio of client Sites. Unlocks client management and the portfolio dashboard. See [Agency setup](/for-agencies/agency-onboarding).

**Portfolio dashboard**
The landing view for agency accounts that shows all clients at once, for triage across the portfolio.

**Plan**
The Onsomble subscription tier, which determines feature availability and usage limits. See [Billing and plans](/account/plans-and-entitlements).

## Product-adjacent terms

**Model provider**
The company operating an AI model: OpenAI (ChatGPT), Anthropic (Claude), Google (Gemini), Perplexity. Model behaviour and outputs change as providers update their systems.

**Model update**
A change released by a model provider that can alter how the model describes businesses. Sometimes produces scan-level shifts even without any action on the business's side. Comparing movement across a portfolio is often the fastest way to tell a model update apart from something specific to a single business.

**Third-party signal**
Content about the business that lives outside the business's own website: directory listings, press coverage, reviews, partner mentions. AI models draw heavily on this material, making it a long-horizon but high-impact discoverability lever.