Wi-Fi security · Plain-English answer
Partly. The person running a Wi-Fi network can see which domains your device contacts, when, and how much data flows, because DNS lookups and connection metadata pass through their router. They cannot read the contents of pages protected by HTTPS. A VPN hides even the domain list from them.
Whoever controls the router sits on the path of everything you send. In practice that means they can see the domains you visit, through DNS lookups and connection records, plus timings and data volumes. Router logs, or free monitoring tools, make this visible to anyone motivated, whether that is a flatmate, an employer or a café owner.
What they cannot see, thanks to HTTPS, is the content: the specific pages within a site, your messages, or your passwords. The realistic picture is a detailed table of contents without the book.
A VPN moves the boundary. All your traffic leaves the device already encrypted and addressed to the VPN server, so the network owner sees a single encrypted stream and nothing about its destinations. The domain list disappears from their view entirely.
Honesty requires the mirror image too: the visibility does not vanish, it moves to the VPN provider, which is why the provider's logging policy matters. ROOT keeps no activity logs, so the browsing that your network operator can no longer see is not being recorded somewhere else instead.
ROOT VPN is free to start with unlimited data, no card needed, and no activity logs.
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