# OpenAI

Source: https://analytics.5h3ll.site/crawlers/chatgpt-user

ChatGPT-User

## ABOUT THIS CRAWLER

Visits a page when a ChatGPT or custom GPT user’s request needs it.

**Usually means:** A person asked ChatGPT something that needed this page. Because a user triggered it, robots.txt rules may not apply.

OpenAI says ChatGPT-User is not used to crawl the web automatically.

## USER AGENT

ChatGPT-User

We match these as user-agent tokens, not full browser strings. Providers may add surrounding version or product text.

## IP VERIFICATION

Verified when user agent and IP range both match

We first match the crawler’s user-agent token, then compare the request IP with the ranges published by the crawler’s operator.

1. User agentThe request’s user agent contains ChatGPT-User.
2. Request IPServer-side tracking forwards the IP address your server saw.
3. Range checkThe IP is compared with the operator’s published address ranges.

Sample IP ranges

- 104.208.184.192/28
- 104.210.139.192/28
- 104.210.139.224/28
- 128.85.198.32/28
- 13.65.138.112/28
- 13.67.72.16/28
- 13.71.2.208/28
- 13.76.116.80/28
- 13.76.32.208/28
- 13.83.167.128/28

Showing up to 10 of 234 ranges, published 20 October 2026. The live list is fetched from the operator.

Range endpoint

https://openai.com/chatgpt-user.json

## Discover when bots and AI assistants crawl your website.

Add a small server-side snippet to see which AI assistants, search engines and training crawlers request your pages, including pages that return 404.

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Read the docs

- ChatGPT, Claude, Perplexity and Gemini traffic in one view
- Verified against each provider’s published IP ranges
- No visitor cookies and no crawler IP addresses stored