Attentico only uses cookies and local browser storage that the service needs to work: signing in, your language, your display preferences. No analytics cookies, no marketing cookies, no tracking. That's also why we don't need to ask for consent — the banner you see on your first visit is a notice, not a choice menu. Below is exactly what gets set in your browser.
A cookie is a small text file your browser stores when you visit a website, for example to remember your session. We also use local storage ('localStorage' and 'sessionStorage'): similar storage in your browser, with one important difference — that data stays on your device and is never sent to a server.
Two groups, both functional:
Without these cookies you can't sign in or use the app. They are only set when you use the corresponding feature.
| Name | Set by | Purpose | Retention |
|---|---|---|---|
| sb-<project>-auth-token | Supabase | Keeps you signed in | Session / until you sign out |
| sb-<project>-auth-token-code-verifier | Supabase | Secures the sign-in flow (PKCE) | A few minutes |
| NEXT_LOCALE | Attentico | Remembers your language choice | 1 year |
| import_oauth_state | Attentico | Protects the contact import from Google or Outlook against forged requests | 10 minutes |
| at-theme | Attentico | Remembers whether you turned on dark mode. Stored in a cookie rather than browser storage, so the server can render the page in the right colours straight away | 1 year |
Local storage for how the app looks for you. This data never leaves your device.
| Name | Set by | Purpose | Retention |
|---|---|---|---|
| attentico_cookie_consent | Attentico (local) | Remembers that you've seen the cookie notice | Until you clear it |
| attentico.milestone.* | Attentico (local) | Remembers which welcome tips you've already had | Until you clear it |
| attentico_onboarding_v1 | Attentico (local) | Keeps your answers during sign-up, so a refreshed page doesn't lose them | Until you close the tab |
Everything above is needed for the service to work, so there's nothing to toggle without something breaking. If you want to clean up anyway, you can always do so in your browser settings, under Privacy & Security → Cookies and site data. Remove the sign-in cookie and you'll have to sign in again; clear the local storage and the app forgets your preferences.
If we ever start setting something new — for a new feature, say — we update this page first. The date at the top shows when that last happened.
Questions about cookies or your privacy? Email us at hello@attentico.nl. We read every message ourselves. How we handle personal data is described in our privacy policy.