Knowledge Base Help & Documentation:
How does “301 Redirects from old URLs to new URLs” option work when migrating to Joomla?
While moving your website data from your Existing CMS to Joomla and preserving the SEO links, there is a need to install ReDJ Joomla plugin before the migration.(If you use other redirection extensions, please, contact us). In this way you will ensure that all your current website links will redirect to the New one and SEO juice will be preserved. After installing and activating the ReDJ plugin on your new Joomla website, choose “301 Redirects from old URLs to new URLs” option in the Migration Wizard and proceed with the migration.