Cludo
Cludo site search monitoring
About this crawler
Cludo is a web crawler identified by the regular-expression pattern [cC]ludo in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block Cludo traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.33%
Technical details
- Name
- Cludo
- Pattern
[cC]ludo- Tags
- monitoring
- Reference
- https://knownagents.com/agents/cludo
- Added
- 2026/04/26
- Instances
- 2 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; Cludo; +https://www.cludo.com/)
Mozilla/5.0 (Windows NT 10.0; cludo.com bot) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Block this crawler
robots.txt — disallow Cludo:
User-agent: Cludo
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} [cC]ludo [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "[cC]ludo") {
return 403;
}
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