DirBuster
DirBuster directory scanner web crawler
About this crawler
DirBuster is a web crawler identified by the regular-expression pattern [dD]ir[Bb]uster in the User-Agent request header. It is categorised as scanner. Use the regex above to detect, log, allow, or block DirBuster traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.26%
Technical details
- Name
- DirBuster
- Pattern
[dD]ir[Bb]uster- Tags
- scanner
- Reference
- https://github.com/KajanM/DirBuster
- Added
- 2026/04/07
- Instances
- 1 known sample(s)
Sample User-Agent strings
DirBuster-1.0-RC1 (http://www.owasp.org/index.php/Category:OWASP_DirBuster_Project)
Block this crawler
robots.txt — disallow DirBuster:
User-agent: DirBuster
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} [dD]ir[Bb]uster [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "[dD]ir[Bb]uster") {
return 403;
}
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