@casino You enter your CleanBrowsing API key on the router and the router will bring your CleanBrowsing profiles to the list of available DNS services. You can choose your CleanBrowsing profile from the dropdown. Without the integration, you’ll have to enter the DNS IP addresses manually by selecting “custom”.
If you enable DNS over HTTPS on the router, then the router will send the DNS queries using your individualized DoH URL for CleanBrowsing. This is more secure and more accurate than the normal DNS queries over UDP, especially when your Internet connection is behind Carrier Grade NAT (CGNAT).
You still need to log on the CleanBrowsing web site to control the filtering categories for each of your profiles.