this post was submitted on 23 Feb 2026
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At a network level, your MAC address is only visible to other machines on your local network. Once your traffic passes through your router, the MAC address is irrelevant and unavailable to the hosts you communicate with.
It's possible your browser/client software is viewing it and leaking that secret to the remote site in-protocol, but fundamentally at a network level there's no reason to be worried about MAC address privacy.