Brave first to nix CNAME cloaking, a sneaky DNS trick used to evade adblockers

CNAME cloacking is a method to hide third party trackers by routing it through first party domains. It is used by Adobe, Criteo, Eularian, etc.

When you visit example.com , instead of connecting to adserver.com , it connects to random-number.definitely-not-adserver.example.com to evade DNS adblocking and extension blocking.

https://medium.com/nextdns/cname-cloaking-the-dangerous-disg...

For firefox users, uBlock Origin has enabled CNAME blocking by default.

While a temporary stop gap, after CNAMEs the ad industry will then require A records from publishers. So what's next? Double lookup of everything?