Privacy policy
Datenschutzerklärung nach Art. 13 DSGVO
Summary
This is a static website. It uses no cookies, no tracking, no analytics, no contact form and no third-party content such as fonts, videos or social media plugins.
Controller
Denis Hierholzer, 79771 Klettgau, Germany. Full address in the imprint. E-mail: denis [at] hierholzer.us.
Hosting
The site is delivered by Cloudflare Pages (Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA). When you open a page, your browser necessarily transmits technical data such as IP address, date and time, requested page and browser type. Cloudflare processes this data to deliver the site and to protect it against attacks. The legal basis is my legitimate interest in a secure and reliable website (Art. 6(1)(f) GDPR). Cloudflare is certified under the EU-US Data Privacy Framework; a data processing agreement is in place. See Cloudflare's privacy policy.
If you write me an e-mail, I use your address and message only to reply. The legal basis is Art. 6(1)(b) or (f) GDPR. I delete the correspondence when it is no longer needed.
Your rights
You have the right to access, rectification, erasure, restriction of processing, data portability and objection (Art. 15–21 GDPR), and the right to lodge a complaint with a supervisory authority, for example the Landesbeauftragte für den Datenschutz und die Informationsfreiheit Baden-Württemberg.
Last updated: November 2026