There are only a few reasons ChatGPT names someone else, and they are separable. ChatGPT answers from model weights first and reaches for the web when the question looks fresh, local or specific. Its search index is Bing-derived, so a page Bing has never indexed is effectively invisible to it no matter how well it ranks in Google.. ChatGPT answers from model weights first and reaches for the web when the question looks fresh, local or specific. Its search index is Bing-derived, so a page Bing has never indexed is effectively invisible to it no matter how well it ranks in Google.
How ChatGPT actually decides
ChatGPT answers from model weights first and reaches for the web when the question looks fresh, local or specific. Its search index is Bing-derived, so a page Bing has never indexed is effectively invisible to it no matter how well it ranks in Google.
Its citations skew toward encyclopedic and reference sources: published analyses put Wikipedia at roughly 47.9% of its top citations. In practice that means the surfaces worth auditing first are Wikipedia, established news and reference sites, vendor documentation, G2 and review aggregators.
The method, in order
Rule out reachability first. If OAI-SearchBot (search) and GPTBot (training) cannot fetch your pages, nothing else on this list matters.
Check whether you are absent or merely outranked. Being unmentioned is a different problem from being mentioned third, and the fixes do not overlap.
Look at what it cites instead. ChatGPT favours encyclopedic and reference sources: published analyses put Wikipedia at roughly 47.9% of its top citations: if your competitors are present in Wikipedia and you are not, that is usually the whole answer.
Check your claims are verifiable somewhere other than your own marketing. Engines corroborate; a claim that appears only on your homepage rarely survives into an answer.
Then fix the cheapest thing that moves: get indexed in Bing Webmaster Tools, then earn a mention on a reference-grade page.
The honest caveat
It is the slowest of the six to notice a new page, because a Bing-derived index has to find you first. Sites that only ever submitted a Google sitemap routinely discover they are absent here.
Cituna checks ChatGPT daily alongside the other five engines, ChatGPT, Perplexity, Gemini, Claude, Grok and Google AI Overviews, on the $39 Starter, and pairs the result with Google Search Console so a change here can be tied to real clicks. We do not track Microsoft Copilot.
Drafted with AI assistance from our own research and Search Console data, and reviewed by Rahul A before publishing. Rules and prices change; check the linked official source before you act.