AI Citation
In one line
AI Citation is the event of your domain or content being credited as a source inside an AI answer — the atomic unit of measurement in GEO.
Going deeper
AI Citation refers to a single event — your domain or content being credited as a source inside one AI answer. Where citation rate is a ratio, AI Citation is the underlying event that the ratio counts. Each one carries a query, a surface and a cited page with it.
Tracking citations event by event makes content insight much sharper. You can see which page wins which kind of prompt, and how the same content cites differently across surfaces — patterns that get smoothed away when you only look at the headline ratio.
Worth flagging: an AI citation is not the same as traffic. The user has to click the citation card for traffic to follow, and many of them do not. Treat AI citation as an exposure asset inside the answer and pair it with AI referral traffic to read the full picture.
Related terms
Citation Rate
Citation rate is the share of a defined prompt set in which an AI answer cites your brand or domain — the headline KPI of GEO.
GEO·AEOSource Attribution
Source attribution is the way AI answers expose where the information came from — citation cards, footnotes or inline links that let users verify the claim and click through.
GEO·AEOAI Referral Traffic
AI Referral Traffic is the visit traffic to your site whose referrer is an AI tool — ChatGPT, Perplexity, Gemini — typically split out as its own channel in GA4 and similar tools.
GEO·AEOAI Visibility
AI Visibility is a composite read on how present your brand is inside AI answers — rolling citations, mentions and share into a single 'do we exist in AI search?' number.
GEO·AEOGEO
GEO (Generative Engine Optimization) is the practice of optimizing content and data so that a brand gets cited and recommended inside generative AI search answers like ChatGPT, Perplexity and Google AI Overviews.
How does your brand show up in AI answers?
Villion measures how your brand appears across ChatGPT, Perplexity and AI Overviews, then automates the work that lifts citation rate and share of voice.
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