Hidden forwarding to own Domain

Hello! I would like to redirect a website/portal (Internet address 1) to my own domain (Internet address 2) in such way that the source address (Internet address 1) is hidden from visitors completely (also via developer tools). Which Cloudflare DNS services could I use to do this?

If you are using :orange: DNS records then that info is hidden as users connect to Cloudflare then Cloudflare connects to your actual IP addresses.