In web browsers, you will need to use the following: https://UNIQUE_LABEL.doh.threatdefense.infoblox.com/dns-query
. This information can be obtained on the General page of the Create New Security Policy wizard inside the Cloud Services Portal. Copy the auto-generated FQDN, or click regenerate to generate a new FQDN. Note that DoH per Policy must be enabled in order to obtain the FQDN. You can also view the information in the Privacy & Security options section of your web browser (see image 1).
Example from Mozilla Firefox.
Note that you can obtain the URL from your browser’s privacy and securty settings. Its location on Firefox is described in the following images (Settings > Privacy & Security). infoblox recommends using increased and maximun protection settings.
(increased - fail open, max - fail closed)