Privacy policy
1. Controller
The controller responsible for data processing on this website within the meaning of the General Data Protection Regulation (GDPR) is:
Björn Linder
Moorkoppel 18, 24232 Schönkirchen, Germany
Email: bjoern.linder@googlemail.com
2. General information
This is a private, non-commercial website and purely informational. There are no user accounts, no contact forms, no analytics or tracking tools and no advertising. No cookies are set, and all files (including fonts and the 3D library) are served from this website itself – no third-party servers are contacted while you browse.
3. Hosting and server log files
This website is hosted by Hostinger International Ltd., 61 Lordou Vironos Street, 6023 Larnaca, Cyprus. When you visit the website, the server automatically records information that your browser transmits (server log files), in particular:
- IP address
- date and time of access
- page or file requested
- referrer URL (the previously visited page)
- browser and operating system used
Processing is based on Art. 6(1)(f) GDPR. My legitimate interest is the technically error-free delivery and the security of the website. I do not combine this data with other data or use it to identify visitors. The log files are kept by the hosting provider only for a limited period and then deleted. Hostinger processes this data on my behalf under its data processing addendum pursuant to Art. 28 GDPR.
4. Links to YouTube
The technique pages contain links to reference videos on YouTube. The videos are not embedded; data is only transferred to YouTube (Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland) when you click a link and open the YouTube website. Google's privacy policy applies there.
5. Feedback by email
The feedback links on this website open your own email program with a prepared message to me. Nothing is sent by the website itself. If you send the email, I receive your email address and the content of your message, and use them only to answer you and to improve the website (Art. 6(1)(f) GDPR). I delete feedback emails once they are dealt with.
6. Your rights
Within the scope of the statutory provisions, you have the right to:
- access the data stored about you (Art. 15 GDPR)
- rectification of incorrect data (Art. 16 GDPR)
- erasure (Art. 17 GDPR)
- restriction of processing (Art. 18 GDPR)
- data portability (Art. 20 GDPR)
- object to processing (Art. 21 GDPR)
To exercise your rights, an email to the address above is sufficient. You also have the right to lodge a complaint with a data protection supervisory authority, for example the Unabhängiges Landeszentrum für Datenschutz Schleswig-Holstein (ULD) in Kiel.
7. Last updated
This privacy policy was last updated in November 2026.