What we keep
An address, its positions and a session id. This page says how each one is used.
What is stored
Your wallet address, the positions it holds, and the session id your wallet login issues. That is the whole record. Holdline keeps it so your positions are there when you come back.
What is never asked for
No name, no email address, no phone number and no document. Login is wallet only, so there is no account to fill in and no password to store.
How a session works
The login service issues a short lived token. This site checks it against that service's public keys, which means no secret of theirs sits on our servers and there is nothing here to leak. A signature over a message naming your exact address proves which wallet the session holds, and it approves no transfer.
What leaves the site
Reference prices come from a public market data feed, requested by our server rather than your browser, so your address is never part of that request. Nothing about you is sent to it.
What your browser keeps
The login service stores its session locally so you stay signed in. Disconnecting clears it. There is no analytics script, no advertising pixel and no third party tracker on any page.
What is public anyway
Once contracts are deployed, positions live on a public chain and anyone can read them. Privacy on this site cannot change what a blockchain publishes.
Deleting your record
Disconnect and stop using the site, and nothing new is recorded. To have the stored positions for an address removed, ask through the contact page from that wallet.