The following instructions are for setting up DoH with Opera on the desktop. The steps are similar for setting it up on Opera mobile, but if you are using Android and have blockerDNS set up as your Private DNS provider, there's no need to also add it to your browser.

Go to Go to full browser settings

Screenshot showing how to get to Opera Settings

Search for DNS using the box at the top-right

Screenshot showing how to get to security settings

Enable the Use DNS-over-HTTPS instead of system's DNS settings option
Change the provider to custom and then put in your custom URL:
{{valueIfPremium(dohUrl( user.username),user.premium)}}

Screenshot showing how to customize DNS over HTTPS for Opera

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