If you've run PPC ads for more than five minutes, you've probably seen this: tons of clicks, zero results. A lot of the time, it's click fraud. Here's how it works and what you can actually do about it.
The click fraud prevention industry has a credibility problem. Most tools work the same way - and they're failing. The reason comes down to where they try to implement protection.
Click fraud is a convenient villain for underperforming ads. But it's probably not your main problem. The real question isn't "who's defrauding me" - it's "why aren't my clicks converting?"