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CrunchBot

seo CrunchBot

LeadCrunch web crawler for lead generation

About this crawler

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

Block-rate · top 25k sites

0.26%
latest snapshot
2026-06-04
matched key: CrunchBot
2026-05-012026-06-040.43%

Technical details

Name
CrunchBot
Pattern
CrunchBot
Tags
seo
Added
2018/06/28
Instances
1 known sample(s)

Sample User-Agent strings

CrunchBot/1.0 (+http://www.leadcrunch.com/crunchbot)

Block this crawler

robots.txt — disallow CrunchBot:

User-agent: CrunchBot Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

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