Citation
In AI search, a citation is a link an answer engine shows to the source page it used when generating part of its answer.
Perplexity cites on nearly every answer; ChatGPT and Gemini cite when retrieval was involved. Citations are the most direct evidence available that a specific page was read and used.
Citations and mentions are distinct. A business can be named without any of its pages being cited — the model drew on trained knowledge or third-party sources — and a page can be cited without the business being recommended.
Why it matters
Citations are measurable in a way brand mentions are not, and they identify exactly which page earned the reference. They also tend to move before mention rate does, making them a useful leading indicator.
An example
Someone asks Perplexity how to choose a payroll provider. The answer names three providers and shows numbered source links beside the sentences that relied on them. One of those links points at a comparison guide on a provider's own site — that page was cited, even though the answer recommends a different provider first.
Common mistakes
- Treating citations and mentions as the same metric. Each can happen without the other.
- Assuming a cited page will send traffic. Many readers take the answer and never click the source.
Questions
- How do I get cited by AI search engines?
- Be retrievable first: allow the search crawlers, serve content in the HTML, and be indexed. Then publish pages that state facts clearly enough to quote — direct answers, tables, specific figures with sources. Pages that answer one question precisely are cited more readily than pages that cover everything loosely.
- Which engines show citations?
- Perplexity shows sources on almost every answer. ChatGPT and Gemini show them when they searched to produce the answer. Google's AI Overviews link to the pages they drew on.