How to Stop Fast Flux

Fast flux is named after a DNS evasion technique called fast flux with an F instead of a V. Bad actors have built malicious infrastructure that constantly rotates. And so the bad operators registered a huge amount of lookalike domains, or at first glance, it may look like an advertising company you've been working with for years. They registered a host of domains that they basically used in a giant fraudulent A.B. testing infrastructure. Until someone were to come along and point a lot of resources at stopping you, you've essentially opened this money spigot.