Cookies and browser storage
This is a convenience translation. Only the German version is legally binding. Deutsche Fassung (German version)
immonum uses only technically necessary storage. Under § 25(2) TDDDG (German Telecommunications Digital Services Data Protection Act) you do not need to give consent for this; that is why there is no cookie banner.
No cookies are set for analytics, marketing or advertising purposes, and no data is passed to third parties.
| Name | Type | Purpose | Duration |
|---|---|---|---|
immonum_sitzung | Cookie (HttpOnly, SameSite=Lax; with HTTPS also Secure) | Keeps you signed in after you sign in. | 12 hours or until you sign out |
immonum-farbschema | Local storage (localStorage) | Remembers whether you use the interface in light or dark mode. Not sent to the server. | until you delete the site data in your browser |
immonum-pdf-<number> | Local storage (localStorage) | Remembers the selection and order of the PDF pages for each calculation. Not sent to the server. | until you delete the site data in your browser |
immonum-thema | Local storage (localStorage), only on the public website | Remembers the website's colour scheme (light or dark), only after you have used the switch. Not sent to the server. | until you delete the site data in your browser |
Signing out (“Abmelden” in the program) ends the session and deletes the session cookie.
You can delete or block cookies and site data in your browser settings at any time. Without the session cookie, signing in is not possible.
As of: October 2026