A website shows up in ChatGPT answers when four things line up: ChatGPT decided to search, its crawler could fetch the page, the page sits in the index it draws from, and the page's content and surrounding evidence were good enough to be one of the few used. The bottom line: most sites that never appear fail on one of the first three, which are technical and fixable, and the rest fail on the fourth, which takes better content and outside corroboration.
Related: our guide to answer engine optimization defines the term and lists eight steps.
The four conditions
| Condition | What decides it | How to check |
|---|---|---|
| 1. ChatGPT searches for the question | It searched on 34.5% of queries in February 2026, so many answers never use a page | Ask your questions with search on and see whether sources appear |
| 2. Its crawler can fetch you | OAI-SearchBot must be allowed. Blocking GPTBot does not matter for search | Read robots.txt and check firewall and bot protection rules |
| 3. You are in the index it uses | ChatGPT search leans on Bing. 87% of 500+ SearchGPT citations matched Bing's top results in Seer's test | Verify in Bing Webmaster Tools and check indexing |
| 4. Your page is one of the few used | AirOps found about 15% of retrieved pages appeared in the answer | Compare your page with the sources ChatGPT actually cites |
The technical reasons sites are missing
- Blocked crawlers. A robots.txt rule, a CDN default, or a security plugin that blocks
OAI-SearchBot. - Content that needs JavaScript. Vercel's analysis found the major AI crawlers do not run JavaScript, so a page that builds itself in the browser can be empty to them.
- Not in Bing. A site verified only in Google may be under crawled in Bing, and IndexNow is one way to notify Bing of changes.
- Thin pages. Pages with little text in the raw HTML give a system nothing to use.
The content and corroboration reasons
- Weak match to the question. AirOps's findings, summarized by Quattr, point to title and query alignment and to answers early on the page.
- Stale content. Ahrefs found ChatGPT showed the strongest recency preference of the platforms it studied.
- No corroboration. Profound's citation study found Wikipedia the most cited source for ChatGPT, and Semrush found Reddit and LinkedIn among the top five, so a business with no presence on such sources has less to draw on.
A diagnostic in five steps
- Pick five questions a customer would ask and run each in ChatGPT with search on.
- Note which sources are cited and whether your site is among them.
- If you are absent, fetch your key page with curl and confirm the content is in the raw HTML.
- Check robots.txt for
OAI-SearchBotand confirm Bing has indexed the page. - Compare your page with the cited pages: is theirs more specific, more current, or better supported?
Because answers vary, repeat the same questions several times before concluding anything. SparkToro and Gumshoe found less than a 1 in 100 chance of the same brand list twice.
Questions people ask
Why does my website not show up in ChatGPT?
Usually one of four things: ChatGPT did not search, OAI-SearchBot could not fetch the page, the page is not in Bing's index, or the page was not among the few used. The first three are technical.
Does ChatGPT use Google or Bing?
Seer Interactive found 87 percent of more than 500 SearchGPT citations matched Bing's top results, against 56 percent for Google's.
Will blocking GPTBot remove me from ChatGPT?
No. GPTBot is the training crawler. Blocking OAI-SearchBot removes you from ChatGPT search.
How can I see whether ChatGPT cites my site?
Ask your customers' questions with search on, read the sources listed, and repeat several times.
Sources
- Search Engine Land: ChatGPT traffic study from Semrush, February 2026
- OpenAI: overview of OpenAI crawlers
- Seer Interactive: 87% of SearchGPT citations match Bing's top results
- Quattr: AirOps findings
- Vercel: the rise of the AI crawler
- Profound: AI platform citation patterns
- Semrush: the most cited domains in AI
- Ahrefs: do AI assistants prefer to cite fresh content