There are many ways to redirect a page to external URL in WordPress. But the easiest way to do it is by using a redirection plugin. This will help with tracking and managing your links and keeps them all in one place where we can edit them at any time. Here are the steps to do it:
1. Go to plugins → Add new
2. Search for "Redirection" Plugin
3. Install and activate it
4. Click on settings and follow along with the setup
5. Go to the plugin dashboard and click on "add new"
6. Enter page URL and the external URL and click on "Add Redirect"
Congratulations, now your page will redirect to the external url. you can also manage your links from the redirection plugin dashboard.
From your hosting cpanel you will find an option said "Redirect"