Cookie policy
Last updated October 21, 2026.
- In short
- viztopo.com uses only the cookies it needs to work: one to keep you signed in, and one for a few minutes while you sign in with Google, GitHub or Discord. No advertising, tracking or analytics cookies, ours or anyone else's. Because they're needed for the service, they don't need your consent; this page tells you what they are.
- Other sites
- Signing in with Google, GitHub or Discord happens on their pages, under their own cookie policies. Paying for a plan uses Square's card form, which can set its own cookies to prevent fraud while you enter a card; Square's privacy notice covers them.
- Your choices
- You can delete cookies and site data in your browser at any time. Without the session cookie you can't stay signed in. Questions: contact@zbackroom.com.
Cookies viztopo.com sets
| Name | What it's for | How long |
|---|---|---|
| __Host-vt_session | Keeps you signed in. Sent only to viztopo.com over HTTPS, and never readable by scripts on the page. | 7 days, or 24 hours without use |
| viztopo_oauth | Only while you sign in with Google, GitHub or Discord: ties the sign-in to this browser, so nobody can complete it in your name. | 10 minutes |
Kept in your browser
Not cookies: the app keeps a few preferences in your browser's local storage. They stay on this device and are never sent to viztopo.com or anyone else.
viztopo.themeLight, dark or system theme.viztopo.workspaceThe workspace you last used.viztopo.overview.showCostsWhether amounts are shown (Show costs).viztopo.canvas.*How the canvas is laid out: views, hidden connections, the order of containers, costs on or off.viztopo.cookies.seenThat you've seen the note about cookies, so it isn't shown again.
zbackroom LLC · contact@zbackroom.com