Botservatory

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OpenAI

OAI-AdsBot

Checks ad landing pages.
Class
User fetch
robots.txt
Not stated
OpenAI does not state its robots.txt behaviour.
Evidence
Confirmed from operator documentation
Source
Published User-Agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot

Proving it is real

Check an address now.

Blocking it

robots.txt
User-agent: OAI-AdsBot
Disallow: /
Cloudflare custom rule expression
(http.user_agent contains "OAI-AdsBot")
nginx
if ($http_user_agent ~* "OAI-AdsBot") {
    return 403;
}

Matching a name only blocks bots that tell the truth about it. Before you do this, read what each decision costs.

Last reviewed Nov 2, 2026