The Citation Rate is the share of answers in which a page of your own domain is listed as a source, relative to all answers to a fixed prompt set. It is the counterpart of the Mention Rate: one measures the brand in the text, the other the website in the sources. Both can be high or low independently of each other.
How does measuring the Citation Rate work?
Four steps. First, check the grounding probability: for which prompts do AI systems list sources at all? Only there can a citation arise. Second, collect the Citation Rate, several times per prompt and system. Third, a technical check for successful retrieval: can the system retrieve all relevant pages? Fourth, the source analysis: which third-party sites are cited for the same prompts, and does the brand need to be present there?
For Google AI Overviews, citation can additionally be observed via the “Generative AI” report in Search Console (AI Overview Citation Rate).
Why does the Citation Rate matter for AI visibility?
Because it shows whether your own website plays a role in AI answers, the third tier of visibility: being the source. A high Mention Rate with a low Citation Rate means the brand is known, but its content does not shape the answer; other sources then say what is said about the brand. At the same time: cited is not visible. A citation in eighth place of an expanded list brings hardly any presence and rarely traffic; the position of the citation therefore belongs in the analysis.
What does this mean for your website?
Does the citation actually bring me anything? This question belongs at the start. Measure the Citation Rate only for prompts where sources are listed, and analyse which of your pages are cited and at which position. Work on the passages of pages that rank for the fan-out queries but are not cited: what is usually missing there is Information Gain or structure, not the ranking.