---
title: "OAI-AdsBot: user agent, token, block rate | Agent Ready Crawlers"
description: "OAI-AdsBot from OpenAI: exact user-agent string, robots.txt token OAI-AdsBot, other purpose and how to verify it. Read 2026-11-04."
canonical: https://agentreadycrawlers.com/crawlers/oai-adsbot
site: "Agent Ready Crawlers"
last_updated: 2026-11-04
section: "Crawlers"
---

# OAI-AdsBot: user agent, token, block rate | Agent Ready Crawlers

> OAI-AdsBot from OpenAI: exact user-agent string, robots.txt token OAI-AdsBot, other purpose and how to verify it. Read 2026-11-04.

Source: https://agentreadycrawlers.com/crawlers/oai-adsbot
Site: Agent Ready Crawlers
Last reviewed: 2026-11-04

Bot from OpenAI

# OAI-AdsBot

In short

OAI-AdsBot is OpenAI's bot, filed under Other. The token to write in robots.txt is OAI-AdsBot. Check a visitor against the operator's published IP list. The crawl of 2026-11-04 did not measure OAI-AdsBot. OpenAI: OAI-AdsBot only visits pages submitted as ads on ChatGPT; OpenAI does not state robots.txt handling for it.

Operator

[OpenAI](https://agentreadycrawlers.com/crawlers/operator/openai/) Vendor profile: [OpenAI](https://agentreadycrawlers.com/vendors/openai/)

Purpose

Other [All other rows](https://agentreadycrawlers.com/crawlers/purpose/other/). Link previews, ad checks, dataset crawls, SEO tools and legacy tokens that fit none of the five purposes.

User-agent string

`Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot`

robots.txt token

`OAI-AdsBot` Matched case-insensitively (RFC 9309). The token and the user-agent string are different things.

Respects robots.txt

No statement

OpenAI: OAI-AdsBot only visits pages submitted as ads on ChatGPT; OpenAI does not state robots.txt handling for it. [Source](https://platform.openai.com/docs/bots), read 2026-11-04.

Verification

Published IP list (JSON)

Match the source address of a request against the operator's published list. [Documentation](https://openai.com/adsbot.json), read 2026-11-04.

IP ranges

[openai.com/adsbot.json](https://openai.com/adsbot.json)

Rate behaviour

Visits only landing pages submitted as ads, per OpenAI.

Block rate

Not measured: the crawl checked 31 AI and search tokens, and `OAI-AdsBot` is not one of them.

Documentation

[platform.openai.com](https://platform.openai.com/docs/bots), read 2026-11-04.

Note. Data collected by OAI-AdsBot is not used to train foundation models, per OpenAI. Blocking it affects ad review, not search or training.

## Allow and refuse lines

### To allow OAI-AdsBot

User-agent: OAI-AdsBot
Allow: /

### To refuse OAI-AdsBot

User-agent: OAI-AdsBot
Disallow: /

Refusing or allowing in robots.txt states a preference. Enforcement of a refusal belongs in your WAF; see how to verify the identity above.

## OpenAI in the Verification Ledger

One IP JSON per crawler plus a Web Bot Auth key directory for the Cloud browser. The most complete set read. [All operators](https://agentreadycrawlers.com/verification/).

IP lists

-   [openai.com/gptbot.json](https://openai.com/gptbot.json)
-   [openai.com/searchbot.json](https://openai.com/searchbot.json)
-   [openai.com/chatgpt-user.json](https://openai.com/chatgpt-user.json)
-   [openai.com/adsbot.json](https://openai.com/adsbot.json)

Reverse DNS

publishes nothing

Key directory

https://chatgpt.com/.well-known/http-message-signatures-directory

Cloudflare

GPTBot and ChatGPT agent listed Verified on Radar (read 2026-11-04); ChatGPT agent is a Cloudflare signed agent, detection ID 129220581

Visa TAP registry

no public operator-level registration found (checked 2026-11-04)

Mastercard Agent Pay

no public operator-level registration found (checked 2026-11-04)

## Other OpenAI rows

-   [GPTBot](https://agentreadycrawlers.com/crawlers/gptbot/) Training token GPTBot
-   [OAI-SearchBot](https://agentreadycrawlers.com/crawlers/oai-searchbot/) Search index token OAI-SearchBot
-   [ChatGPT-User](https://agentreadycrawlers.com/crawlers/chatgpt-user/) Live answer fetch token ChatGPT-User
-   [ChatGPT agent (Cloud browser, formerly Operator)](https://agentreadycrawlers.com/crawlers/chatgpt-agent/) Task agent no token
-   [ChatGPT Atlas (browser agent mode)](https://agentreadycrawlers.com/crawlers/chatgpt-atlas/) Task agent no token

## Sources

-   [Overview of OpenAI Crawlers](https://platform.openai.com/docs/bots) read 2026-11-04
-   [openai.com: adsbot (JSON)](https://openai.com/adsbot.json) read 2026-11-04

Last reviewed 2026-11-04