AI2Bot
Academic research crawler for NLP dataset creation
About this crawler
AI2Bot is a web crawler identified by the regular-expression pattern AI2Bot in the User-Agent request header. It is categorised as academic, ai-crawler. Use the regex above to detect, log, allow, or block AI2Bot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
2.0%
Technical details
- Name
- AI2Bot
- Pattern
AI2Bot- Tags
- academic, ai-crawler
- Reference
- https://datadome.co/bots/ai2bot/
- Added
- 2026/04/17
- rDNS suffixes
.ai2.org,.allenai.org- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely AI2Bot 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.
.ai2.org.allenai.org
Sample User-Agent strings
AI2Bot
Block this crawler
robots.txt — disallow AI2Bot:
User-agent: AI2Bot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} AI2Bot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "AI2Bot") {
return 403;
}
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