For many reasons, duplicate content is bad for SEO. Today I found many duplicate from my hosting, and I need to write about subdomain addon domain cpanel problem. The problem is when I look in google index, there are many duplicate between www.addon-domain.com with addon-domain.maindomain.com, probably this is because one or few lines of bad php codes on addon-domain.com site.
Subdomain Addon Domain Cpanel Problem
Well, this simply htaccess codes will help you to prevent the subdomain cpanel (addon-domain.maindomain.com) to access the www.addon-domain.com directly, so you can improve website.
RewriteCond %{HTTP_HOST} main-domain\.com$
RewriteRule ^(.*)$ "http\:\/\/www.addon-domain\.com\/" [R=301,L]
Instruction: Put the code on .htaccess file in the root of addon-domain.com
if you are using wordpress, you can easily embed this code at the original wordpress .htaccess, so find the original wordpress htaccess, it should be like this:
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
Then what you must do is just change all the code like this:
RewriteEngine On
RewriteCond %{HTTP_HOST} main-domain\.com$
RewriteRule ^(.*)$ "http\:\/\/www.addon-domain\.com\/" [R=301,L]
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
It will fix the SEO duplicate problems. Cheers!
