ProCogSEOBot

seo ProCog(?:SEO)?Bot

ProCog SEO and web crawler

About this crawler

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

Block-rate · top 25k sites

0.065%
latest snapshot
2026-06-04
matched key: ProCogSEOBot
2026-05-012026-06-040.11%

Technical details

Name
ProCogSEOBot
Pattern
ProCog(?:SEO)?Bot
Tags
seo
Reference
http://www.procog.com/spider.html
Added
2026/05/09
Instances
2 known sample(s)

Sample User-Agent strings

Mozilla/5.0 (compatible; ProCogBot/1.0; +http://www.procog.com/spider.html)
Mozilla/5.0 (compatible; ProCogSEOBot/1.0; +http://www.procog.com/ )

Block this crawler

robots.txt — disallow ProCogSEOBot:

User-agent: ProCogSEOBot Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} ProCog(?:SEO)?Bot [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "ProCog(?:SEO)?Bot") { return 403; }
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