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# Redirigir subdominios excepto www.example.com
RewriteEngine On
RewriteCond %{REQUEST_URI} !^/sd_
RewriteCond %{HTTP_HOST} !^www\.example\.com [NC]
RewriteCond %{HTTP_HOST} ^([^.]+)\.example\.com
RewriteRule (.*) /sd_%1/$1 [L]

# Redirecciona peticiones de www.example.com/sd_<subdomain>/<page> a http://<subdomain>.example.com/<page>
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /sd_(.+)\ HTTP/
RewriteRule ^sd_([^/]+)/(.*)$ http://$1.example.com/$2 [R=301,L]

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