Cookie Policy
Version: April 28, 2026
1. General information
This website uses cookies and comparable storage technologies. In Germany, the legal basis for storing or reading information on your device is in particular section 25 TDDDG. Where personal data is processed afterwards, the legal basis follows the GDPR.
Technically necessary cookies are used so that the functions of the website expressly requested by you can be provided. Non-essential cookies, especially analytics and marketing cookies, are used only where valid consent exists or another legal basis applies.
2. Cookie categories
- Necessary cookies: required for login, security, form functions, language selection, booking flows and the basic delivery of the website.
- Preference cookies: store choices such as the selected language version or the confirmation of the cookie notice.
- Analytics cookies: used for statistics and audience measurement.
- Security and anti-fraud technologies: support protection against abuse and automated attacks.
3. Cookies and storage objects in the current project setup
| Name | Category | Purpose | Retention period |
|---|---|---|---|
| PHPSESSID | Necessary | Technical server-side session management | Session |
| session_token, session_persistent | Necessary | Login, recognition of a user account and optional persistent session | Session or according to the selected login duration |
| lang | Preference | Stores the selected language version of the website | Until changed or deleted |
| eucookie | Preference | Stores that the cookie notice was confirmed; in the current implementation this also enables analytics loading | 1 year |
| pending_event, pending_event_target | Functional | Temporary storage of a started event registration flow after login or signup | 2 days |
| event_interest_token | Functional / Analytics | Recognition of anonymous event interactions to avoid duplicate counting | 365 days |
| noshow-popup-newsletter | Preference | Prevents the newsletter popup from being shown again | By the browser until deletion |
| _ga, _gid, weitere Google-Analyse-Cookies | Analytics | Audience measurement and usage statistics through Google Analytics 4 in production after consent | Depends on the respective Google cookie |
4. External services with possible cookie or storage effects
- Google Analytics 4: In production, analytics scripts are loaded only after the cookie notice has been confirmed. Cookies or similar technologies may then be set by Google.
- Google reCAPTCHA Enterprise: Used to prevent automated requests. Technical information, usage data and possibly cookies may be transmitted to Google.
- Google Identity Services: May be integrated for login or account functions. Depending on usage, Google cookies or similar technologies may be used.
- Stripe: During purchase flows for digital content, Stripe may be integrated for payment processing and fraud prevention. Device-related information may also be processed.
5. Legal bases
- section 25(2) TDDDG for technically necessary storage or access
- section 25(1) TDDDG together with Art. 6(1)(a) GDPR for cookies or comparable technologies requiring consent
- Art. 6(1)(b) GDPR for functional storage connected to services requested by you, for example login, booking or event registration
6. Consent and withdrawal
You can withdraw consent already given at any time with future effect by resetting stored cookie settings or deleting the relevant cookies in your browser. The cookie notice will then be shown again on the next page view.
7. Browser settings
You can configure your browser to block cookies, allow them only in individual cases or automatically delete them when the browser is closed. Please note that this may limit individual functions of the website.
8. Changes to this policy
We update this cookie policy where the technologies used, legal requirements or website functions materially change.