Running several online stores or marketplace seller accounts from one computer is common, and it is also one of the easiest ways to have accounts flagged as related. Platforms do not need your name to link two accounts. They only need enough matching technical signals.

What platforms compare

  • Cookies and saved sessions left over from a previous login.
  • The IP address and the network it belongs to.
  • The browser fingerprint: user agent, screen resolution, fonts, time zone, language, canvas and WebGL rendering, and hardware details.
  • Behavioral patterns such as identical login times and identical device settings.

A simple isolation checklist

  1. One browser profile per store. Never log in to two stores in the same profile, even in a private window.
  2. One stable network identity per store. Use a dedicated proxy and keep it consistent, because jumping between countries looks worse than staying in one place.
  3. Match time zone, language and locale to the proxy location.
  4. Keep the fingerprint stable. A fingerprint that changes on every launch is as suspicious as one shared by ten accounts.
  5. Keep a written record of which profile, proxy and login belongs to which store, so that teammates do not mix them up.

Where a dedicated tool helps

Doing the checklist with ordinary browser profiles works for two or three accounts. Beyond that, it gets hard to keep fingerprints and proxies consistent by hand. An antidetect browser keeps one isolated profile per account, with its own storage, proxy and fingerprint values, and lets a team share profiles without sharing passwords in chat.

One example is ZLogin, a browser for Windows (64-bit) built for managing many isolated profiles, with a free tier to try the workflow. Whatever tool you use, test it on a low-risk account first and check each profile on a fingerprint test page before you log in to a real store.

Final advice

Isolation lowers risk but does not replace following each platform's rules. Use separate accounts only where the platform allows it, keep your business details accurate, and do not automate anything the terms forbid.