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What is ChatGPT-User?

ChatGPT-User is the agent OpenAI uses when a ChatGPT user or a custom GPT asks to read a page.

User-triggered fetchPartly followsIP list
Operator
OpenAI
Purpose
User-triggered fetch. Fetches a page when a person asks an assistant about it.
robots.txt token
ChatGPT-User
Sample user agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ChatGPT-User/1.0; +https://openai.com/botUser agents change with versions. Match on the token, not the full string.
Follows robots.txt
Partly. OpenAI says robots.txt rules may not apply, because a person asked for the page.
How to verify
Check the IP against OpenAI's published list.
Sources
OpenAI documentationOpenAI IP list
Last reviewed

Allow or block ChatGPT-User

Block ChatGPT-User
User-agent: ChatGPT-User
Disallow: /

Asks ChatGPT-User not to crawl any page. Well-behaved crawlers stop; it does not stop anyone who ignores robots.txt.

Allow ChatGPT-User
User-agent: ChatGPT-User
Allow: /

Lets ChatGPT-User crawl everything. You only need this if a broader rule would otherwise block it.

Should you block it?

ChatGPT-User only visits when a person asks OpenAI's assistant about your page. Blocking it means the assistant can't read the page that person asked about.

Write a full policy with the AI Crawler Policy Generator

How to verify a ChatGPT-User request

  1. Find the IP address of the request in your server or CDN logs.
  2. Get OpenAI's published list (OpenAI IP list).
  3. Check whether the IP falls inside one of the ranges. If it doesn't, the request is not from ChatGPT-User, whatever its user agent says.
Test ChatGPT-User requests

Questions about ChatGPT-User

Is ChatGPT-User safe to allow?

ChatGPT-User reads public pages; it does not log in or submit forms. Whether to allow it depends on whether you want OpenAI's product to use your pages.

How do I know a request is really ChatGPT-User?

Check the request against what OpenAI publishes: Check the IP against OpenAI's published list. The user agent alone proves nothing.

How often does ChatGPT-User visit?

It depends on your site; OpenAI doesn't publish a schedule. Referscope shows the real visits.

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