The click-fraud-protection category has split by go-to-market motion, not by underlying technology. Enterprise-tier tools optimize for the sales cycle: long pilots, custom dashboards, integration with internal BI. Self-serve tools optimize for time-to-first-value: paste a script, see fraud blocked the same hour. Both can use the same underlying detection signals — the question is whether you want to spend a quarter procuring software or a Tuesday afternoon installing it. AdProtektor is the second kind of tool, with the same detection depth (150+ device and behavioral signals, person-based profiling, multi-platform enforcement) as the enterprise category.