URL Redirect (also referred to as URL Forwarding) is a technique which is used to redirect your domain’s visitors to a different URL. You can forward your domain name to any website, webpage, etc. which is available online.

Redirects use status codes defined within the HTTP protocol. 

Based on this, URL forwarding may be of the following types: 301 (permanent)302 (temporary) URL Redirects, and URL Frame (masked redirect)Read more about these redirect types.
We also have more information about how to set up URL Redirects. 

If you would like to set the wildcard subdomain that lets you forward all subdomains that have not been created to a page on your website or to any other page on the Web, you may refer to this tutorial

This type of redirect will also work if someone enters a non-existent or mistyped subdomain.