What is ad fraud (invalid traffic) in digital advertising, what are its main types, and how does it affect advertisers?

Question

Digital Marketing — Hard

What is ad fraud (invalid traffic) in digital advertising, what are its main types, and how does it affect advertisers?

Accepted Answer

Ad fraud involves deceptive activities that manipulate ad metrics, lacking genuine human interaction. The correct answer accurately identifies main types, such as bot traffic and domain spoofing, and their impact on advertisers. Other options are incorrect as they either focus on specific aspects, like competitor click fraud, or misrepresent the concept entirely.