Last updated 4 October 2026.
When you sign in with Google, Google tells us your name, email address and profile picture link. We keep those, along with when you asked for access, any note you add to your request, when you last signed in, and whether access was approved.
We don't ask Google for anything else — no contacts, no mail, no files — and Google never gives us your password.
Only to decide who can use the site and to let you back in. We don't send marketing email, sell or share your details, or show ads.
One cookie keeps you signed in, and a short-lived one protects the sign-in round trip with Google. There are no analytics or advertising cookies.
Vessel positions come from public AIS broadcasts and weather from the US National Weather Service. Nothing about you is mixed into either.
You can ask what we hold about you, or have your account deleted, at any time by contacting the person who runs the site. You can also remove tankersurf's access from your Google account under Third-party connections.