does CNAME flattening help with this? I’m not smart enough to understand the details.
I think NextDNS own "Block Disguised Third-Party Trackers" option blocks these.
@Olivier Poitrey are you saying “Block Disguised Third-Party Trackers“ protects against CNAME cloaking?
Calvin Hobbes yes, it's the same thing.
Olivier Poitrey Is it possible to check the domains calling these disguised third-party trackers or the disguised third-party tracker itself? I am not able to see it the logs or analytics reports
Ricardo M the logs do show it when you click the red information dot next to a blocked entry. If it’s a disguised tracker it displays an arrow pointing to the actual host.