As of: April 2026
The controller within the meaning of the GDPR is:
Christof Holdermann, Holdermann IT
Am Bungert 2, 77880 Sasbach, Germany
Phone: +49 7841 8329775
E-Mail: christof@holdermann.me
This website is hosted on a server located in Germany (Hetzner Online GmbH, Gunzenhausen). When you visit the website, server log files are automatically created containing technically necessary information such as your IP address, time of access and page visited. These logs are deleted after at most 7 days and are not passed on to third parties. A data processing agreement pursuant to Art. 28 GDPR exists with Hetzner. The legal basis is Art. 6 Para. 1 lit. f GDPR (legitimate interest in secure operation).
This website does not use cookies. No tracking or marketing cookies are deployed.
This website uses Umami, a privacy-friendly open-source analytics software.
Umami is self-hosted on our server in Germany (Hetzner Online GmbH, Gunzenhausen)
and sets no cookies. No personal data is collected and no data is
transmitted to third parties.
The following anonymous information is collected: pages visited, time on page, browser
and operating system used, screen resolution and country of origin (based on IP address,
which is not stored). Identification of individual persons is not possible.
The legal basis is Art. 6 Para. 1 lit. f GDPR (legitimate interest in improving the offering).
You have the right to access (Art. 15 GDPR), rectification (Art. 16 GDPR),
erasure (Art. 17 GDPR), restriction of processing (Art. 18 GDPR),
data portability (Art. 20 GDPR) and objection (Art. 21 GDPR).
To exercise your rights, please contact: christof@holdermann.me
You also have the right to lodge a complaint with the competent data protection supervisory authority:
State Commissioner for Data Protection and Freedom of Information Baden-Württemberg (LfDI BW)
Königstraße 10a, 70173 Stuttgart, Germany
poststelle@lfdi.bwl.de
Server log files are automatically deleted after at most 7 days. Since this website has no user accounts, no further personal data is subject to deletion.