HenkBot
Valyu AI content analysis and data collection crawler
About this crawler
HenkBot is a web crawler identified by the regular-expression pattern HenkBot in the User-Agent request header. It is categorised as ai-crawler. Use the regex above to detect, log, allow, or block HenkBot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- HenkBot
- Pattern
HenkBot- Tags
- ai-crawler
- Reference
- https://valyu.ai/crawler
- Added
- 2026/04/26
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; HenkBot/1.0; +https://valyu.ai/crawler)
Block this crawler
robots.txt — disallow HenkBot:
User-agent: HenkBot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} HenkBot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "HenkBot") {
return 403;
}
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