ChatGPT-User in robots.txt
ChatGPT-User is run by OpenAI. Purpose: user fetch. Source: OpenAI documentation.
What blocking ChatGPT-User changes
This agent fetches a page when a person asks the assistant about it. Blocking it stops those live reads.
Block ChatGPT-User
User-agent: ChatGPT-User Disallow: /
Block ChatGPT-User from one folder
User-agent: ChatGPT-User Disallow: /private/
Allow ChatGPT-User
If no group names ChatGPT-User, it follows your "User-agent: *" rules. To allow it while other bots are blocked:
User-agent: ChatGPT-User Allow: /
How many sites block ChatGPT-User?
Of the 49 SaaS sites in our State of AI readiness check on 2026-10-17, 0 block ChatGPT-User from their homepage.
More: the guide AI crawlers in robots.txt and the AI crawler checker.
Questions
What is ChatGPT-User?
ChatGPT-User is the user agent token for an agent run by OpenAI. Its purpose: user fetch. See the OpenAI documentation linked on this page.
How do I block ChatGPT-User?
Add a group to robots.txt with "User-agent: ChatGPT-User" and "Disallow: /". The rule applies to agents that follow robots.txt.
How do I check if my site blocks ChatGPT-User?
Run the free check on this site. It tests your robots.txt against 8 AI agents on your homepage. The $19 deep report tests 18 agents per path.
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