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HEADMasterSEO
HEADMasterSEO tool for SEO analysis
About this crawler
HEADMasterSEO is a web crawler identified by the regular-expression pattern HEADMasterSEO in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block HEADMasterSEO traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.26%
Technical details
- Name
- HEADMasterSEO
- Pattern
HEADMasterSEO- Tags
- seo
- Added
- 2026/05/09
- Instances
- 1 known sample(s)
Sample User-Agent strings
HEADMasterSEO
Block this crawler
robots.txt — disallow HEADMasterSEO:
User-agent: HEADMasterSEO
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} HEADMasterSEO [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "HEADMasterSEO") {
return 403;
}
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