Click-fraud-protection tools used to mostly mean one thing: detect a bad IP, add it to a blocklist, repeat. That worked when fraudsters used cheap proxy pools with low IP diversity. Today, residential proxy networks rotate millions of IPs per minute, click farms operate from real consumer phones and laptops, and competitor click-bombers run mobile-tethered scripts that change IP every few clicks. IP-only filtering misses all of it.
The category has split into two halves. One half still treats IP exclusion as the primary mechanism — fast to ship, easy to explain, increasingly weak against modern fraud patterns. The other half (where AdProtektor sits) builds behavioral fingerprints of the visitor and uses IP exclusion as one enforcement primitive among several. The detection method is the line that matters; everything else — pricing, dashboards, integrations — is downstream.
The other split is by channel coverage. Some tools cover only Google Ads, which works fine if Google is 100% of your spend, but breaks the moment you start spending on Meta. Multi-channel tools (AdProtektor, a handful of others) cover Google Ads + Meta in one install — same person-based detection, same exclusion-management UI, one tracking script.