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← Advanced training · Module 5 — Ad fraud — farms, apps, bots and IPs, and how an account defends itself

Apps, IPs and non-human traffic: the other three doors into fraud

⏱️ 10 min read · 🛡️ Fraud 🖼️ Display 🔎 Search · updated on 2026-08-22

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How apps living off accidental clicks are detected (anomalous CTR, zero-second sessions, filler categories) and how they are excluded by category or wholesale; account-level IP exclusions, their limits and how to feed them from your visitors' fingerprints; and the signals of non-human traffic on your site (browsing speed, no events, data centres, proxies) that a visitor script can measure.

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