Redirects are commands to the web browser and some search engine crawlers directing them to move visitors from one URL to another.
 They have a number of different uses including redirecting traffic from old or non-existent pages to a page you want users to visit, migrating content to a new location, or folding a number of URLs into a single canonical URL.
Properly implementing Redirects is important to make sure a website stays searchable and that everyone’s experience stays as smooth as possible.
The right Redirect type should be used, depending on the redirect, and they must be maintained and updated when necessary.