OpenAI
OAI-SearchBot
OpenAI's crawler for indexing content to be used in ChatGPT's search and citation features.
Purpose: ChatGPT search indexing and citations
📊 Popularity & Traffic
Allows sites to appear as cited sources in ChatGPT responses.
🤖 User Agent Strings
Use these patterns to identify OAI-SearchBot in your server logs or configure your robots.txt file.
OAI-SearchBot
Respects robots.txtIndexes content for ChatGPT search answers
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-SearchBot/1.3; +https://openai.com/searchbot🌐 IP Ranges
Source: Official JSON file
Official source fileIdentified IP Ranges6 Ranges
13.65.138.112/28Subnet with 16 addresses
157.55.132.80/28Subnet with 16 addresses
157.56.88.96/28Subnet with 16 addresses
40.84.186.208/28Subnet with 16 addresses
52.167.144.176/28Subnet with 16 addresses
20.106.183.128/28Subnet with 16 addresses
How to read CIDR notation:
The/28 suffix indicates a block of 16 IP addresses. For example,.112/28 covers all addresses from .112 up to .127. Adding these to your firewall will block the entire range used by OAI-SearchBot.📝 Robots.txt Configuration
Add the following to your robots.txt file to block OAI-SearchBot:
User-agent: OAI-SearchBot
Disallow: /💡 Important Notes
- Separate from GPTBot - allows granular control over training vs. search visibility
- If both GPTBot and OAI-SearchBot are allowed, OpenAI may use one crawl for both purposes
Beyond blocking crawlers
See what AI is saying about your brand
Understanding crawlers is step one. With Aiso, you can see the actual conversations happening about your brand inside ChatGPT, Claude, and Perplexity.