Difference between Response.Redirect and Server.Transfer

Response.Redirect

1. Tranfers the page control to the other page, in other words it sends the request to the other page.
2. Causes the client to navigate to the page you are redirecting to. In http terms it sends a 302 response to the client, and the client goes where it's told.

Server.Transfer

1. Only transfers the execution to another page and during this you will see the URL of the old page since only execution is transfered to new page and not control.
2. Occurs entirely on the server, no action is needed by the client