Lunio

Lunio (which famously built a massive cult following under its original name, PPC Protect) is a highly aggressive, fiercely modern European titan that specifically targets large-scale "Performance Marketing Agencies" and massive D2C (Direct-to-Consumer) brands. It completely rejected the old model of "IP Blocking" (which is easily bypassed) and moved entirely to "Advanced Device Fingerprinting." Its absolute biggest differentiator is "Zero-Friction Blocking." Legacy click fraud tools often blocked legitimate customers by mistake (false positives), terrifying ad managers. Lunio mathematically guarantees an incredibly low false-positive rate. Instead of just looking at IP addresses, it analyzes 100+ data points on the user's phone (screen resolution, battery level, gyroscope movement) to mathematically prove if the device is being operated by a human or a server rack script. It heavily dominates the "Social Media" ad space. While most click fraud tools only work on Google Search, Lunio built a massive, terrifyingly complex engine to protect Meta (Facebook/Instagram), TikTok, and LinkedIn ads. If a bot farm is repeatedly clicking your highly expensive LinkedIn B2B video ad, Lunio identifies the fake accounts and mathematically excludes them from your custom audiences.