15 Use Site Redirects or URL Mapping

When you restructure or move a web site, you can redirect user requests from old URLs to their current ones. Specifying 30x redirects for URLs can maintain bookmarks or published links across site redesigns.

Pages that have high reputation rankings in search engines could move to different URLs when you move to Content and Experience hosted sites from other infrastructure technologies. Redirects help reorganize the URL structure of a site and preserve the search engine rankings.