AI Visibility Glossary
AI Visibility
Why it matters
Buyers increasingly ask AI engines for recommendations instead of scrolling search results. If AI never names your brand, you're invisible at the exact moment a purchase decision is forming — no matter how well you rank on Google.
How to measure it
Ask AI engines the real questions your buyers ask, then measure whether your brand is named, where it ranks in the answer, who is named instead, and which sources the engine cited. Top Citation Signal scores this on eight signals.
Measure your AI visibility
See how AI engines cite and recommend your brand, scored on eight signals across every major engine. Free.
Related terms
AEO, or Answer Engine Optimization, is the practice of optimizing content and brand signals so AI answer engines surface and recommend you in their responses. Where SEO targets a ranked list of links, AEO targets being the answer itself.
GEO, or Generative Engine Optimization, is the practice of earning citations and mentions inside generative AI responses. It focuses on becoming a source the model trusts and pulls from when it composes an answer, rather than ranking in a traditional index.
The Signal Score is Top Citation Signal's 0–100 composite measure of a brand's AI visibility. It combines eight weighted signals — citation, trust, entity strength, coverage, source diversity, consistency, freshness, and expert mentions — into one comparable number.
An answer engine is an AI system that responds to a query with a direct, synthesized answer instead of a list of links. ChatGPT, Perplexity, Google AI Overviews, Gemini, and Copilot are answer engines that pull from web sources to compose responses.