GPTBot
OpenAI GPT web crawler bot
About this crawler
GPTBot is a web crawler identified by the regular-expression pattern GPTBot in the User-Agent request header. It is categorised as ai-crawler. Use the regex above to detect, log, allow, or block GPTBot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
11.9%
Technical details
- Name
- GPTBot
- Pattern
GPTBot- Tags
- ai-crawler
- Reference
- https://platform.openai.com/docs/gptbot
- Added
- 2023/08/09
- rDNS suffixes
.openai.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely GPTBot with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.openai.com
Sample User-Agent strings
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.0; +https://openai.com/gptbot)
Block this crawler
robots.txt — disallow GPTBot:
User-agent: GPTBot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} GPTBot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "GPTBot") {
return 403;
}
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