Summary
Cited Sources are references that AI engines list separately from the main text to show where the information in an answer came from.
Definition
When platforms like Perplexity AI Search or Google AI Overviews generate responses, they often display a list of references at the end or alongside the answer. These are Cited Sources. They point back to the original Source Domains that supported the AI’s output, giving users visibility into the origins of the information.
Cited Sources serve a different function than Inline Sources. While Inline Sources are clickable links inside the answer that guide user navigation, Cited Sources are evidence of attribution. They show users “this is how the AI got the answer,” providing transparency rather than a direct prompt to click.
For marketers, Cited Sources are important because they reveal which websites are explicitly recognized by AI engines as credible references. Tracking them highlights both opportunities to increase Brand Visibility and competitor activity within AI search ecosystems.
Use cases
Measuring how often your website appears as a Cited Source in AI-generated results.
Comparing Cited Sources with Inline Sources to see whether your brand is shown as attribution or as a recommended click.
Identifying competitor domains that are frequently cited as trusted references.
Evaluating content gaps that may prevent your site from being chosen as a Cited Source.
Informing Generative Engine Optimization (GEO) strategies focused on building authoritative, reference-worthy content.
Frequently Asked Questions
How do Cited Sources relate to transparency?
They provide visibility into which websites were used to generate an answer, helping users understand the AI’s sourcing.
Can Cited Sources bring referral traffic?
Yes, because many AI platforms include clickable links in their citations that users can follow.
Why are Cited Sources important for marketers?
They indicate which sites AI engines explicitly credit as authoritative, revealing influence and visibility in AI search.
What is the difference between Cited Sources and Cited Domains?
Cited Sources are the individual URLs shown, while Cited Domains are the websites those sources come from.