KeywordDensityRobot
SEOCentro keyword density analyzer
About this crawler
KeywordDensityRobot is a web crawler identified by the regular-expression pattern KeywordDensityRobot\/ in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block KeywordDensityRobot 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
- KeywordDensityRobot
- Pattern
KeywordDensityRobot\/- Tags
- seo
- Reference
- http://www.seocentro.com/tools/search-engines/keyword-density.html
- Added
- 2026/05/09
- Instances
- 2 known sample(s)
Sample User-Agent strings
KeywordDensityRobot/0.8 (http://www.seocentro.com/tools/search-engines/keyword-density.html)
KeywordDensityRobot/0.9 (http://www.seocentro.com/tools/search-engines/keyword-density.html)
Block this crawler
robots.txt — disallow KeywordDensityRobot:
User-agent: KeywordDensityRobot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} KeywordDensityRobot\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "KeywordDensityRobot\\/") {
return 403;
}
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