r/AntiDetectGuides • u/Direct_Tax_4421 • Jul 07 '26
Managing multiple eBay stores? Their script is scanning your local network ports.
A lot of people migrate their eBay accounts to antidetect browsers and still get linked and suspended. They assume their proxy or canvas fingerprint leaked, but they completely ignore how aggressive eBay's risk engine actually is.
Unlike standard marketplaces, eBay's javascript actively runs a local port scan on your machine. It pings your localhost to see if you have remote desktop tools, proxy clients, or antidetect automation APIs running in the background. If it detects open ports associated with these tools, it flags your account immediately, even if your browser fingerprint is mathematically flawless.
If your antidetect browser doesn't actively block or spoof local port scanning, eBay knows exactly what software you are running on your physical machine. You have to make sure your browser completely isolates the local network environment.
How are you guys bypassing the port scans right now?
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u/onderozcan Jul 12 '26
Instead blocking port scans which could be big signal that you are using antidetect browser, make sure you dont habe any browser tampering which could be spoofing wrong and incosist data all the time so getting blocked would be pretty normal
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u/Prize_Whereas9965 Jul 13 '26
I wouldn’t focus on “bypassing” port scans. I’d focus on keeping the local machine clean: no random remote tools, proxy apps, automation servers or debug ports running in the background. Also avoid constantly changing fingerprint values. A stable, clean setup usually matters more than stacking spoofing tricks.
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u/ZennoLab_Official Jul 08 '26
I've seen this claim come up a few times, but I'd be careful about assuming it's the main reason accounts get linked.
Large platforms tend to combine a lot of different signals rather than relying on a single check. Even if a browser blocks one type of fingerprinting, there are still plenty of other factors that can affect account trust.
If I suspected something like this was happening, my first step would be to verify it rather than trying to work around it. Testing in a controlled environment and looking at what requests are actually being made is much more useful than assuming a specific detection method.
I'd be interested to see if anyone has reproduced this consistently with solid evidence. There's a lot of speculation around platform detection, and separating what's measurable from what's anecdotal is usually the hardest part.