This module adds page to Admin -> Setup -> Redirects where you can add 301 redirects (inside your site or to other domains).
Redirects module for ProcessWire
This module creates an admin page under Setup > Redirects. This page serves as a list of redirects, and lets you create individual redirets one by one and import batches of redirects using CSV syntax. Redirects can forward the visitor to another path or page on your site, as well as an external URL.
Install and use modules at your own risk. Always have a site and database backup before installing new modules.