Cookie notice
Last updated: 21 October 2026
StackTether does not use advertising, analytics or tracking cookies, and does not let other companies track you on our pages. That is why we do not show a cookie banner.
The website (stacktether.com)
Our website sets no cookies and stores nothing in your browser.
The portal (app.stacktether.com)
The portal uses only cookies it needs to sign you in, keep your session secure and remember a display choice you make:
| Cookie | Purpose | How long |
|---|---|---|
Sign-in session (names starting with sb-) |
Keeps you signed in and proves your two-factor check. Strictly necessary. Cannot be read by scripts on the page and is sent only over HTTPS. | Until you sign out or your session ends |
st_oauth_return |
Remembers which AI app approval you were on while you sign in, so you return to it. Strictly necessary. Cannot be read by scripts on the page. | 10 minutes |
theme |
Remembers whether you chose the light or dark look. Set only when you choose one; holds only "light" or "dark". | 1 year |
Cloudflare security cookie (for example cf_clearance) |
May be set by Cloudflare Turnstile, the bot check on the sign-in, password reset and invite pages, to confirm you are not a bot. Strictly necessary for security. | Set by Cloudflare, usually minutes to hours |
Hosting version cookie (for example __vdpl) |
May be set by our hosting provider, Vercel, so your open page keeps talking to the same version of the portal while we release an update. Strictly necessary. Holds no personal data. | Until you close the browser |
You can block or delete cookies in your browser settings, but you will not be able to sign in to the portal without the sign-in session cookie.
AI apps
AI apps that connect to StackTether do not use cookies with us; they use short-lived sign-in tokens. The AI apps' own websites and apps follow their own cookie policies.
Changes
If we ever add a cookie that is not strictly necessary, we will update this page first and ask for your consent where the law requires it. Questions: our contact form, topic "Privacy request". More detail is in our privacy policy.