I’m often asked about the differences between the 301 and 302 redirect and how they affect the way search engines see a site. Another popular question is why it even matters which one is used, since from a user’s perspective everything looks fine with both types of redirects
Well, even though things might look fine on the users end, these redirects can cause a great deal of trouble if not employed correctly. These two redirects have two different uses and should be applied accordingly.
Just remember a 301 redirect is a “Permanent Redirect” which transfers over the page rank and other historical search engine data. The 302 redirect is a “Temporary Redirect” which does not transfer over this information and should only be used in very limited situations.