OAI-SearchBot

OpenAI · AI search indexer

Surfaces websites in search results in ChatGPT's search features. Sites that block it won't appear in ChatGPT search answers.

User-agent contains
OAI-SearchBot
robots.txt token
OAI-SearchBot
Respects robots.txt
Yes, per operator docs
Official IP ranges
39 prefixes

How to verify OAI-SearchBot

Matching the user agent isn't enough, because any client can send it. A real OAI-SearchBot request comes from an IP address inside OpenAI's published list:

The quickest way to check a whole log is our free log checker. It runs in your browser and splits OAI-SearchBot requests into real and fake.

First 20 prefixes
104.210.140.128/28
13.66.216.176/28
135.234.64.0/24
172.182.193.224/28
172.182.193.80/28
172.182.194.144/28
172.182.194.32/28
172.182.195.48/28
172.182.209.208/28
172.182.211.192/28
172.182.213.192/28
172.182.224.0/28
172.203.190.112/28
172.203.190.128/28
172.203.190.80/28
20.14.99.96/28
20.168.18.32/28
20.169.6.224/28
20.169.7.48/28
20.169.77.0/25

Block or allow OAI-SearchBot in robots.txt

User-agent: OAI-SearchBot
Disallow: /

Use Allow: / instead to explicitly permit it, or build a full file with the AI robots.txt generator. robots.txt is a request, not a lock: it only works for bots that honor it, and only real OAI-SearchBot traffic would.

Source: OpenAI documentation

Verify OAI-SearchBot automatically

One API call tells your app, WAF or middleware whether a request claiming to be OAI-SearchBot really comes from OpenAI's official IP ranges.

Get a free API key10,000 checks/month free · Pro $19/month for 1M

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