Duplicate content is regarded by many bad for search engine optimization. Though it could be argued whether this is needed or not, you might be tempted to make the MagentoTM webshop only accessible through Joomla!TM and not any more by accessing the Magento application directly. While MageBridge translates every single Magento-link to a MageBridge link, visitors can still visit the Magento application if they would know the direct URL. Because MageBridgeTM serves the same content as Magento does, this is duplicate content. And if visitors can access Magento directly, there is a (very small) chance search engines will find out about this as well.

The best strategy would be to redirect every visitor from Magento to Joomla!. But if somebody visits a specific URL in Magento, it would be unfriendly to redirect that user to the default Joomla! homepage - you want to redirect the user directly to the same page within Joomla!. Lucky enough, converting the Magento URL into a Joomla! URL is easy. MageBridge uses the Magento URL-system, so a rewrite of the old Magento page to the new Joomla! page is very easy.
https://MAGENTO/nine-west-women-s-lucero-pump.html
https://JOOMLA/shop/nine-west-women-s-lucero-pump.html
Editing .htaccess
Note that this strategy involves hacking of the .htaccess file of Magento. Before you start off changing things, make a good backup of the current .htaccess file. Also note that editing RewriteRules requires a solid understanding of how Apache works and how RewriteRules work. The example below is merely given as a suggestion, not as a working file for all environments.
The strategy involves blocking visitors from accessing the main index.php file, while the MageBridge entry-point (magebridge.php) is still accessible. Open up the .htaccess file and locate the section beginning with <IfModule mod_rewrite.c>.
The main change is to replace the redirect to index.php with a redirect to your Joomla! site.
<IfModule mod_rewrite.c>
############################################
## enable rewrites
Options +FollowSymLinks
RewriteEngine on
############################################
## you can put here your magento root folder
## path relative to web root
#RewriteBase /magento/
############################################
## workaround for HTTP authorization
## in CGI environment
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
############################################
## always send 404 on missing files in these folders
RewriteCond %{REQUEST_URI} !^/(media|skin|js)/
############################################
## rewrite non-existing files/directories that are not the admin
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteCond %{REQUEST_URI} !/admin/
RewriteCond %{REQUEST_URI} !/admin$
RewriteRule ^(.*)$ http://JOOMLA/shop/$1 [R=301,L]
############################################
## rewrite requests for the default homepage
RewriteCond %{REQUEST_URI} ^/$
RewriteRule ^(.*)$ http://JOOMLA/shop/ [R=301,L]
############################################
## rewrite everything else to index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* index.php [L]
</IfModule>
Note that we use SEF URLs here - we have enabled SEF from with the Joomla! Global Configuration. The page "https://JOOMLA/shop/" is served by a Root Menu-Item (configured from with the Joomla! Menu Manager) with an Alias "shop". Now with this change, if a visitor would visit the URL "https://MAGENTO/nine-west-women-s-lucero-pump.html", he/she will be redirected immediately to the URL "https://JOOMLA/shop/nine-west-women-s-lucero-pump.html".
One step further
Following the example above, the Magento site will still be accessible by using /index.php/ in the URLs. To redirect those URLs as well is a bit more tricky, because the backend of most third party Magento modules will use different paths then the default admin-path. You will need to add extra rules for those modules as well.
The following rules will redirect all other pages as well, except for URLs with "/admin" or "/magebridge" in them.
############################################
## rewrite requests for /index.php/ pages except for admin-pages
RewriteCond %{THE_REQUEST} /index.php
RewriteCond %{REQUEST_URI} !/magebridge/
RewriteCond %{REQUEST_URI} !/admin/
RewriteCond %{REQUEST_URI} !/admin$
RewriteCond %{REQUEST_URI} !^/js
RewriteCond %{REQUEST_URI} !^/skin
RewriteCond %{REQUEST_URI} !^/media
RewriteRule ^(.*)$ http://JOOMLA/shop/ [R=301,L]


