Redirect Domain in Cloudflare

Source: Redirect example.com to www.example.com

1. Set up A records in Cloudflare

Point new A records for @ and www to 192.0.2.1. This is a dummy address but allows page rules to work on Cloudflare.
CloudFlare Screenshot

2. Set up page rules in Cloudflare

Now set up page rules to forward both domain.com and <www.domain.com> to the new URL
CloudFlare Screenshot