What Does "Pop-Up Window" Mean?

Pop-up windows are graphical interface overlays that suddenly appear on top of a website's main content without you asking for them, interrupting your browsing with commercial spam or invasive ads.

Smart Perimeter Content Filtering

Not all pop-ups are malicious; some are functional components and others are spam. AdBlock Network differentiates them. The firewall performs asynchronous read-only requests to multiple independent endpoints to keep rules fresh, deploying the Address and Advanced layers to drop unwanted ad scripts.