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

OAI-AdsBot is OpenAI's crawler for another purpose. OpenAI documents no robots.txt token for it, so we have no verified lines to block it. Checked October 29, 2026.

What is OAI-AdsBot?

OAI-AdsBot is OpenAI's crawler for another purpose. The operator describes a purpose that is neither AI training nor search. From the operator's wording: validates landing pages of ads submitted on ChatGPT.

OperatorOpenAI
Purpose (operator wording)other (validates landing pages of ads submitted on ChatGPT)
robots.txt tokenOAI-AdsBot
User agent stringMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot
Respects robots.txtNot stated
IP rangeshttps://openai.com/adsbot.json
Last verified

What else should I know about OAI-AdsBot?

What is the OAI-AdsBot user agent string?

This is the user agent string OpenAI documents for OAI-AdsBot, 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-AdsBot user agent string
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot

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

OpenAI documents no robots.txt token for OAI-AdsBot, so we have no verified lines to show. Block lines are not stated.

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-AdsBot affect AI answers?

OpenAI does not say what blocking OAI-AdsBot changes. That is not stated.

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

Does OAI-AdsBot follow robots.txt?

Not stated. OpenAI docs do not address robots.txt for OAI-AdsBot.

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

What IP addresses does OAI-AdsBot use?

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

Which other OpenAI crawlers are there?

What should I read next?

Next: give AI tools something to quote

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