UnChaos

search-engine UnChaos

UnChaos hybrid web search engine crawler

About this crawler

UnChaos is a web crawler identified by the regular-expression pattern UnChaos in the User-Agent request header. It is categorised as search-engine. Use the regex above to detect, log, allow, or block UnChaos traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

No block-rate data for this crawler.

Technical details

Name
UnChaos
Pattern
UnChaos
Tags
search-engine
Reference
http://www.unchaos.com/
Added
2026/05/09
Instances
1 known sample(s)

Sample User-Agent strings

<a href='http://www.unchaos.com/'> UnChaos </a> From Chaos To Order Hybrid Web Search Engine.([email protected])

Block this crawler

robots.txt — disallow UnChaos:

User-agent: UnChaos Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} UnChaos [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "UnChaos") { return 403; }
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