Cookies & storage
Which cookies and storage technologies we use – and how you control them.
We use as few cookies as possible. Necessary storage is required for operation. First-party analytics only runs with your explicit consent; referral and affiliate codes from links are stored separately for our own attribution. Details on data processing are in our privacy policy.
Your choice
You can adjust or withdraw your consent at any time.
Necessary cookies
Required for login, session security and storing your settings. These cannot be disabled.
Analytics cookies
Help us understand and improve how the platform is used. Only set after your consent.
Marketing cookies
For optional advertising cookies. No marketing cookies are currently active; referral and affiliate codes from links are listed separately below.
| Name | Purpose | Storage |
|---|---|---|
| sb-…-auth-token | Login and session security | Cookie (only when signed in) |
| bb-consent | Stores your cookie choice | Cookie + localStorage (1 year) |
| theme, bb-font-scale | Display preferences: light/dark mode and font size | localStorage |
| bb_analytics_session_id | Pseudonymous first-party analytics session, only after analytics consent | localStorage; cleared when analytics consent is withdrawn |
| biber_utm | First-touch UTM/referrer attribution for own campaigns, only after analytics consent | localStorage; cleared when analytics consent is withdrawn |
| referral_referrer_id, referral_referrer_ts | Referral-link attribution from ?ref for booking rewards; no server call on landing | sessionStorage + localStorage (7-day fallback) |
| affiliate_wp_code, affiliate_wp_ts | Affiliate/partner code from ?wp; no server call on landing | sessionStorage + localStorage (30-day fallback) |
| bb-compare | Course comparison list on this device | localStorage |
| bb-antrag-draft, bb_booking_draft_<termId> | Local drafts for application and booking configuration; the server reprices bookings | localStorage (booking draft max. 7 days) |
| bb-panel-role, bb-attention-counts, __s256_terms_checked | Short-lived UI caches for navigation, badges and terms checks | localStorage / sessionStorage |
More information about how we process your data: To the privacy policy →