How to rank on ChatGPT search

“Ranking on ChatGPT” is not really ranking — there is no numbered results page. What you are actually after is being cited: named and linked when ChatGPT answers a question in your field. That happens through a different pipe from Google’s AI Overviews, and getting the plumbing right is most of the battle. Here is how ChatGPT finds sources, and what makes it pick yours.

How ChatGPT gets its answers

ChatGPT draws on three different mechanisms, and confusing them is why so much advice on this is wrong:

• Its trained knowledge — what the model absorbed during training, with a cutoff date. You cannot directly influence this for a specific query, and it is not where citations come from.
• ChatGPT search — the live search feature that fetches current results and shows sources with links. This is what you are optimising for, and it relies on an index built by OpenAI’s own crawler, which has also drawn on Bing’s search results.
• On-demand browsing — when a prompt makes ChatGPT fetch a specific URL then and there.

Each of those last two uses a different crawler, and telling them apart is the single most useful thing to understand here.

Step one: allow the right OpenAI crawlers

OpenAI operates three separate user agents, and they do different jobs. If you want to be cited in ChatGPT search, the one that matters is OAI-SearchBot:

• OAI-SearchBot — builds the index behind ChatGPT search. Allow this one to be eligible for citations.
• ChatGPT-User — fetches a page live when a user’s prompt triggers a browse. Allow it so those fetches succeed.
• GPTBot — used for training, not search. Blocking GPTBot does not remove you from ChatGPT search results; allowing it does not put you in them. This is the crawler most “block ChatGPT” guides mean, and it is the wrong one for this goal.

So the robots.txt that keeps you eligible for ChatGPT search looks like this — note that you can allow the search crawlers while still opting out of training if you want to:

# Eligible for ChatGPT search citations:
User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

# Optional: opt out of training only, without
# affecting search citations:
User-agent: GPTBot
Disallow: /

Check what you currently allow with the robots.txt checker — a surprising number of sites block all three by accident, inherited from a plugin or CDN default nobody chose.

Step two: be in Bing’s index

Because ChatGPT search has drawn on Bing’s results, being indexed by Bing is a practical advantage that most people optimising “for AI” overlook entirely. The steps mirror Google’s: verify your site in Bing Webmaster Tools, submit a sitemap, and confirm your key pages are actually indexed. If you have never looked at Bing, this is often the fastest available win — and the general mechanics are the same as getting indexed on Google, just on a second search engine.

Step three: give it something worth quoting

Access gets you eligible; content gets you chosen. ChatGPT synthesises an answer and attaches the sources it leaned on, and it favours pages that make a clear, checkable claim it can stand behind — the same writing discipline that underpins generative engine optimization across every AI engine:

• Lead with the answer. A self-contained passage that states the fact directly, near a descriptive heading, is far more quotable than the same fact buried three paragraphs in.
• Be specific and current. Concrete numbers, dates, steps and definitions are what a summary is built from. Keep them up to date — models weight freshness for anything time-sensitive.
• Earn corroboration. ChatGPT leans toward claims that are consistent across multiple reputable sources. Being mentioned and linked elsewhere — the ordinary work of digital PR and being genuinely useful — makes your version of a fact the one it trusts.
• Be clear about who you are. A consistent description of your organisation and expertise, backed by structured data, helps the model attribute a statement to a credible named source rather than an anonymous page.

What does not move the needle

There is no ChatGPT submission form and no markup that requests a citation. An llms.txt file will not do it either — it is a proposal no major AI provider has confirmed it reads, and it is honestly not where your effort belongs. Keyword density, hidden text and the other tricks from a decade ago are, if anything, counterproductive: they make a passage less quotable, not more.

How to check where you stand

The direct test is to ask ChatGPT the questions your customers ask and see whether it cites you, a competitor, or nobody in your niche. Do it periodically — results shift as the index updates. For the underlying readiness — crawler access, structured data, and whether your pages carry quotable answers at all — run the website GEO check, and see what an AI visibility checker tests for how that assessment works. The companion guide, how to appear in Google AI Overviews, covers the engine that works the opposite way — on Google’s own index rather than OpenAI’s.