How Amazon's Algorithm Detects Multiple Seller Accounts (And How to Stay Compliant)

If you've ever had an Amazon seller account suspended for "related account" violations, you already know the frustration. But do you know how Amazon actually detected the connection? It's not just about IP addresses. In 2025, Amazon's detection system is far more sophisticated. What Amazon Actually Tracks 1. Browser Fingerprint Every browser has a unique "fingerprint" made up of dozens of signals: Canvas hash – your GPU renders shapes in a microscopically unique way WebGL renderer – your graphics card model and driver version AudioContext fingerprint – your audio hardware's unique signature Installed fonts – the exact set of fonts on your machine Screen resolution + color depth Timezone and language settings Even if you switch IPs, if two accounts share the same browser fingerprint, Amazon's system flags them as related. 2. Cookie and LocalStorage Correlation If you've ever logged into Account A and Account B from the same browser profile – even weeks apart – the cookies and cached dat