Corroboration
Corroboration is when multiple independent, reputable sources agree on a claim about you, giving AI systems the confidence to treat it as fact and repeat it in answers.
Corroboration is independent agreement that makes a claim trustworthy. When several credible, unrelated sources say the same thing about you — your expertise, your results, what you do — an engine stops treating it as your unverified self-description and starts treating it as established fact it can safely state.
It sits at the junction of the credibility and authority pillars. Your own site claiming you're the leading provider is an assertion; ten respected third parties describing you that way is corroboration, and engines lean on the latter when deciding what to repeat. This is also a guard against hallucination — well-corroborated facts are the ones an answer engine will confidently surface, while uncorroborated claims get hedged or omitted.
Example. If your founder is described as an expert only on your About page, an engine may not assert it. If that same expertise is echoed in conference bios, interviews, and an industry publication, the claim is corroborated — and the engine will state it plainly when asked who's an authority on the topic.
Relevant pillars
Related terms
- Branded MentionA branded mention is any reference to your brand name across the web, linked or not, that helps AI systems recognize you as a known entity and weigh how often and how favorably you're discussed.
- E-E-A-TE-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness — Google's framework for judging content quality, and a useful proxy for the credibility signals AI engines reward.
- EntityAn entity is a distinct, identifiable thing — a person, company, product, or place — that AI systems recognize and reason about as a single, consistent node rather than as loose strings of text.