Privacy statement
Privacy policy
1. Controller
Dipl.-Ing. Andreas Hardt
Auf der Heilen 21
51674 Wiehl
Germany
Email: iwe@hardt-wiehl.de
2. Hosting and server log data
This website is a static website published via GitHub Pages. When the website is accessed, technically necessary server log data may be processed, in particular the IP address, time of access, requested page, and browser and device information.
Processing takes place to provide the website securely and reliably on the basis of Art. 6(1)(f) GDPR. The legitimate interest is the secure, stable and efficient provision of this website.
3. Cookies and audience measurement
This website uses Cloudflare Web Analytics, a service provided by Cloudflare, Inc., to statistically evaluate usage and measure the technical performance of the website. For this purpose, JavaScript is loaded from static.cloudflareinsights.com and measurement data is transmitted to cloudflareinsights.com.
According to Cloudflare, Web Analytics does not use cookies, does not collect or use personal visitor data and does not track individual end users across different websites.
The service is used to measure reach and improve this website technically. Where personal data is processed, the legal basis is Art. 6(1)(f) GDPR. The legitimate interest is the statistical evaluation and optimisation of the website. Cloudflare may also process data outside the European Economic Area and provides data protection agreements and standard contractual clauses for this purpose.
4. Contact by email
If you contact us by email, the information you provide will be processed in order to handle your enquiry. Depending on the content of the enquiry, the legal basis is Art. 6(1)(b) or (f) GDPR. The data will be deleted once it is no longer required to process the enquiry and provided that no statutory retention obligations apply.
5. External links
This website contains links to external services, in particular LinkedIn, XING and Wiley Online Library. A connection to the respective provider is established only when such a link is selected. The provider's privacy policy applies to data processing on that website.
6. Administration area
The administration area at /admin/ is intended exclusively for authorised editors. Authentication is handled through GitHub OAuth. In the process, data is exchanged between the browser, GitHub and the OAuth authentication service used. Unauthorised visitors should not use the administration area.
7. Rights of data subjects
Subject to the applicable statutory requirements, data subjects have, in particular, the right of access, rectification, erasure, restriction of processing, data portability and objection. They also have the right to lodge a complaint with a data protection supervisory authority.
8. Current version
Last updated: July 2026. This privacy policy will be updated if the website, hosting or services used change.