Source Citation

A source citation is the link or reference an AI assistant attaches to a statement in its answer, pointing at the page the statement was drawn from. It is the assistant’s evidence trail, and it is the route by which a page, and the business behind it, enters an answer built from the web.

How a citation is produced

At answer time the assistant searches, fetches a handful of pages, lifts passages from them and writes; the citation marks which fetched page supplied which claim. Each vendor documents the fetch step: OpenAI names ChatGPT-User as the agent that fetches when a user asks, Perplexity says Perplexity-User visits a page to help provide an accurate answer, and Google says its AI features show supporting links to indexed, snippet-eligible pages found through several related searches. The page is cited as a URL. The business is named only if the passage, or the page around it, says who is speaking.

Citation and mention are not the same thing

A page can be cited for a fact with no business named in the sentence that carries it. A business can be named from a directory or a review site while its own site is never cited. Both happen, and they are scored differently: the measurement this site runs records the mention and the recommendation, and the citation tells you which page did the work. To be cited at all a page needs a self-contained passage that answers the question, and a crawler has to have received it. This site’s own audit found 61.5% of 9,483 small-business sites had no question-and-answer content of any kind, which is the shape a citable passage most often takes; the count is in what 9,483 small business websites serve to an AI crawler.

A common question

Can a page be cited without the business behind it being named in the answer?

Yes. A citation points at the page a statement came from, so an assistant can credit a URL for a fact while no business appears in the sentence carrying it. The reverse happens too: a business can be named out of a directory or a review site the assistant fetched, while its own site is never cited once. The measurement this site runs records the mention and the recommendation separately, and the citation shows which page supplied the claim.

Sources

Fetch behavior: OpenAI and Perplexity crawler documentation, and Google’s documentation on AI features. The audit figure is this site’s own; sample drawn per metro and trade, percentages describe the sample.