ChatGPT search explained: how it finds and links to websites

ChatGPT search is the part of ChatGPT that looks things up on the live web and answers with links to its sources. For a website owner, OpenAI's documented requirements are short. Allow its search crawler, OAI-SearchBot, and make sure your host or content delivery network (CDN) is not blocking that crawler's IP addresses. That makes a site eligible. OpenAI adds: "Placement is not guaranteed."

Almost everything else people say about "ranking in ChatGPT" goes beyond what OpenAI has published. As of October 2026, the OpenAI pages cited here describe no webmaster console, no URL submission form and no performance report for organic results. They never state which search providers ChatGPT works with. They do not explain how sources are chosen beyond one sentence.

What ChatGPT search is and who can use it

OpenAI launched ChatGPT search on October 31, 2024 for Plus and Team users. It opened to all logged-in users on December 16, 2024, and on February 5, 2025 to everyone in regions where ChatGPT is available. Today, OpenAI's help center lists web search as available on ChatGPT Free, Go, Plus, Pro, Business, Enterprise and Edu, and says people who are not signed in can use it too.

A user does not have to ask for it. OpenAI says: "ChatGPT may search the web automatically when your question would benefit from current information." Users can also choose Search from the tools menu. When search is not used, OpenAI says, responses "are based on what the model has learned during training." So the same question can be answered from a live search one time and from the model's memory the next.

How ChatGPT search finds pages

OpenAI describes two inputs, and is specific about only one of them.

The first is its own crawler. OpenAI's crawler documentation says OAI-SearchBot "is used to surface websites in search results in ChatGPT's search features."

The second is other companies' search results. The help center article on search says: "To provide relevant responses to your questions, ChatGPT search sometimes partners with other search providers. When it does, ChatGPT search typically rewrites your query into one or more targeted queries that it sends those providers." The article never states which companies those providers are. The nearest it comes is one line, "For more information about how search providers may process queries, review their privacy policies," followed by links to the Microsoft privacy statement and the Shopify privacy policy. The page does not mention Bing or say what either company supplies, so a statement like "ChatGPT uses Bing" is an inference, not something OpenAI says.

Note the rewriting. The words sent to a search provider are not the words your customer typed. They are targeted queries written by the model, sometimes several for one question.

The OpenAI agents and what each one decides

OpenAI runs four agents with different jobs. Only one governs search eligibility. Our guide to AI crawlers and robots.txt has the full list for every vendor, with sample rules.

Two practical notes from the crawler documentation. After a robots.txt change, "it can take ~24 hours" for search to adjust. And if a site allows both OAI-SearchBot and GPTBot, OpenAI "may use the results from just one crawl for both use cases."

How results and links are shown

OpenAI's description of the interface is brief: "Responses that use web search may include citations. Select a citation to open its source." On desktop, pointing at a citation previews it. A Sources control, when available, lists "cited sources and other relevant links."

A site can be a cited source, or it can sit among the "other relevant links" without being quoted. OpenAI does not say how either set is chosen. And OpenAI warns its own users not to take citations on trust: "Search results and citations can be incomplete, outdated, or incorrect. Open a cited source to check that it supports the answer." If ChatGPT has stated something wrong about your company, see our guide to what to do when AI says something wrong about your business.

What OpenAI says about eligibility and ranking

OpenAI's guidance for site owners in its help center is three sentences long. On ranking: "ChatGPT ranks search results using multiple factors intended to help users find relevant, reliable information. Placement is not guaranteed." On eligibility, it tells you to allow OAI-SearchBot to crawl the site and to "confirm that the website host or content delivery network allows traffic from OpenAI's published searchbot IP addresses."

The launch post put it this way: "Any website or publisher can choose to appear in ChatGPT search." That sentence links to the crawler documentation. There is no application.

The second half of the eligibility sentence is the one that gets skipped. A firewall or bot-protection setting can turn the crawler away even when robots.txt allows it. Our guide to CDNs and firewalls blocking AI crawlers shows how to check, and our guide to verifying AI bots in server logs shows how to confirm that a visit really came from OpenAI.

The same pages say nothing about sitemaps, structured data, page speed or any way to submit a URL. That silence does not prove those things are useless. It means OpenAI has not said they are inputs.

Local results and reservations

OpenAI says ChatGPT "can also use location information to find local results, including restaurants, news, and weather." By default that is an approximate location from the user's IP address; sharing a device's precise location "is optional and off by default." For local detail, ChatGPT "may share your location with trusted third-party providers that help provide more local information, such as nearby business listings or weather reports." Those providers are not named, so OpenAI's pages do not tell you which business listings to update.

Restaurants have one documented integration. Depending on the restaurant, ChatGPT "may show availability from OpenTable, Resy, or Yelp" on eligible consumer plans. Our guide to local businesses and ChatGPT covers the practical side of local visibility.

Shopping results and ads are separate systems

When a question shows shopping intent, ChatGPT can show product options with images, details and links to sellers. OpenAI's shopping help article draws a clear line: "Product results are selected independently by ChatGPT and are not ads, nor influenced by any OpenAI partnerships." It adds that ads are separate from product results.

A feed is optional. To the question of whether one is needed if ChatGPT already crawls a site, OpenAI's merchant page answers: "No, but feeds give you greater control over how your products appear."

Instant Checkout is documented two ways

OpenAI's own pages disagree as of October 2026. The merchant page says: "We're moving away from a standalone Instant Checkout experience in ChatGPT and prioritizing better shopping discovery and merchant-owned checkout experiences." The consumer shopping help article still says: "For some eligible products and merchants, ChatGPT may also show an Instant Checkout option that lets you complete checkout in ChatGPT instead of leaving for the merchant's site." Neither page dates the change. The safe reading is that purchases happen on your own site or app, and that in-chat checkout is not something to build a plan on. Our guide to GEO for e-commerce stores covers product data in more depth.

Ads

Ads are bought through OpenAI's Ads Manager and, per its ads help article, "appear below ChatGPT responses." OpenAI says it does not show ads to users on Plus, Pro or any Business plan, or to accounts identified as belonging to users under 18. Advertisers can add tracking parameters to their landing page URLs. None of this applies to organic citations, which cannot be bought.

What OpenAI does not document

Because OpenAI documents no report, measuring this is your job. Look at referrals in your own analytics, as described in how to know if ChatGPT is bringing users to your site, and record what ChatGPT says for a fixed set of questions over time.

What to do with this

1. Read your robots.txt and confirm nothing disallows OAI-SearchBot, including a wildcard rule.
2. Check your CDN, firewall and security plugins for bot blocking, and allow OpenAI's published search bot IP ranges if needed.
3. Decide separately about GPTBot. Blocking it is a choice about training and does not remove you from search.
4. Put the facts you want repeated, such as services, prices, locations and hours, in plain text on pages a crawler can fetch.
5. If you sell products, keep prices and availability current wherever they are published. If you are on Shopify or Etsy, your catalog is already connected.

These steps make a site eligible and readable. They do not earn a recommendation, and no step can.

Conclusion

ChatGPT search combines OpenAI's own crawler with results from search providers it does not identify in so many words, rewrites each question into queries of its own, and shows answers with citations and a list of sources. What OpenAI asks of site owners is modest: let OAI-SearchBot in at both the robots.txt layer and the firewall layer. What it promises in return is nothing: "Placement is not guaranteed." Shopping results run on product data and are not ads, ads are a separate paid system, and Instant Checkout is in flux. If you want a clear picture of whether your site is reachable and readable for AI search, request a free GEO audit. More guides are in our GEO and AEO Guide.

Frequently asked questions