Click-fraud protection used to mean one thing: detect a bad IP, add it to a blocklist, repeat. That worked when fraudsters used cheap proxy pools. Today residential proxy networks rotate millions of IPs, click farms run on real consumer phones, and competitor click-bombers change IP every few clicks. IP-only filtering misses all of it.
The tools that matter now split on two lines. Detection: person-based behavioral profiling vs. IP + user-agent. Scope: an all-in-one platform covering Google Ads and Meta vs. a single-channel point tool. AdProtektor sits on the modern side of both — and the comparisons below show exactly where that lands against the names you are evaluating.