Detection
Safe Browsing
Google Safe Browsing is Google's own domain-reputation system, independent of ad review, that flags a domain as compromised or as serving malicious or unwanted software — the verdict applies domain-wide, not to a single URL, and can trigger from something as unrelated to ad cloaking as a compromised WordPress plugin or an injected third-party ad script on the destination. A Safe Browsing flag isn't something a traffic filter can fix or cause, since the filter only inspects and routes incoming requests — it never adds a script or download to a page a passed visitor receives.