Privacy policy

Datenschutzerklärung · Last updated: 11 October 2026

The short version

This site sets no cookies, uses no analytics or tracking, and loads nothing from third parties. The only data processed is what is technically needed to deliver the pages to your browser.

Controller

Hosting

This site is delivered by Cloudflare, Inc., 101 Townsend St., San Francisco, CA 94107, USA. When you open a page, Cloudflare processes technical connection data in order to deliver the page and protect the site from misuse. This includes your IP address, the date and time of the request, the page requested, and information your browser sends, such as its type and language.

The legal basis is Art. 6 (1) (f) GDPR. The legitimate interest is the secure and reliable delivery of this site.

Cloudflare may process this data in the United States. Cloudflare states that it complies with the EU–U.S. Data Privacy Framework and uses standard contractual clauses for international transfers. Details are in Cloudflare's privacy policy.

Cookies, analytics and third-party content

None. This site does not set cookies, does not measure visits, and does not embed fonts, videos or scripts from other providers.

Links to other sites

This site links to YouTube. No data is sent to YouTube until you click the link. From then on, the privacy policy of Google applies.

Contact by email

If you write to the address above, your message and email address are processed in order to answer you. Messages are forwarded to a mailbox at Google (Gmail). The legal basis is Art. 6 (1) (f) GDPR. Messages are deleted when they are no longer needed.

Your rights

Under the GDPR you have the right to:

• access the personal data held about you,
• have inaccurate data corrected,
• have data erased or its processing restricted,
• object to processing based on legitimate interests,
• receive your data in a portable format,
• lodge a complaint with a data protection supervisory authority, for example the one at your place of residence.

To exercise these rights, write to the email address above.