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What is OAI-SearchBot, and how do I block it?

OAI-SearchBot is OpenAI's search crawler. Two lines in robots.txt block it, and OpenAI says it follows them. Checked October 29, 2026.

What is OAI-SearchBot?

OAI-SearchBot is OpenAI's search crawler. Search crawlers build the index a search or answer product draws on.

OperatorOpenAI
Purpose (operator wording)search index
robots.txt tokenOAI-SearchBot
User agent stringMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
Respects robots.txtYes
IP rangeshttps://openai.com/searchbot.json
Last verified

What else should I know about OAI-SearchBot?

What is the OAI-SearchBot user agent string?

This is the user agent string OpenAI documents for OAI-SearchBot, as of October 29, 2026. Version numbers and details can change, so match on the token in robots.txt, not on the whole string.

OAI-SearchBot user agent string
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot

How do I block OAI-SearchBot in robots.txt?

Add this group to the robots.txt file at the root of your site. It asks OAI-SearchBot to stay out of every page.

Block OAI-SearchBot
User-agent: OAI-SearchBot
Disallow: /

To allow it explicitly, for example while a broader rule blocks other bots:

Allow OAI-SearchBot
User-agent: OAI-SearchBot
Allow: /

How do I opt out of OpenAI training but stay in its search?

Each OpenAI user agent has its own token, so you can set them one by one. This file blocks GPTBot and allows OAI-SearchBot, ChatGPT-User. Every line comes from the rows in this dataset. Whether allowing a bot keeps you in a product is OpenAI's call, so check each crawler's page. OpenAI says ChatGPT-User may not follow robots.txt.

OpenAI: block training, allow search and user fetch
User-agent: GPTBot
Disallow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

Does blocking OAI-SearchBot affect AI answers?

OpenAI: 'Sites that are opted out of OAI-SearchBot will not be shown in ChatGPT search answers, though can still appear as navigational links.'

Each other OpenAI user agent has its own robots.txt token, so a rule for OAI-SearchBot does not cover them. See the related crawlers below.

Does OAI-SearchBot follow robots.txt?

Yes. OpenAI docs list OAI-SearchBot as a robots.txt tag for managing search appearance; robots.txt changes can take ~24 hours to take effect.

Robots.txt is a request, not a lock (RFC 9309).

What IP addresses does OAI-SearchBot use?

OpenAI publishes a list at https://openai.com/searchbot.json. We did not download or parse it. A request that claims to be OAI-SearchBot but comes from outside that list is not OAI-SearchBot.

Which other OpenAI crawlers are there?

What should I read next?

Next: give AI tools something to quote

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