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Privacy Policy

1. Data Controller

Responsible for this website:

Marc Krautwedel


E‑Mail: administrator@krautwedel.com


2. General Information on Data Processing

  • No registration, no logins,
  • No tracking, no analytics tools
  • No cookies, except those strictly necessary for technical reasons (currently: none)
    • Processing is carried out solely for the purpose of providing the website. The legal basis is Article 6(1)(f) of the GDPR (legitimate interest in a functional website).

    3. Server‑Logfiles (Hosting)

    When you visit the website, the hosting provider automatically generates server log files. The following information is typically recorded:
  • IP‑address
  • Date and time of access
  • File/URL accessed
  • amount of data transferred
  • Browser type and version
  • Operating system
  • Referrer URL (if provided)
    • This data is processed to ensure technical operations and to defend against attacks, and is automatically deleted after a reasonable period of time. Legal basis: Article 6(1)(f) of the GDPR.

    Einsatz von MathJax (Formeldarstellung)

    This website uses MathJax to display mathematical formulas. MathJax is loaded via the jsDelivr CDN: Provider: ProspectOne, ul. Krolweska 65A, 30‑081 Kraków, Poland For technical reasons, your IP address is transmitted to the jsDelivr servers when the MathJax library is loaded. No cookies are set, and no personal profiles are created. The legal basis is Article 6(1)(f) of the GDPR (legitimate interest in the technically accurate and accessible display of formulas).

    5. Contact Us

    If you contact us by email, the information you provide (e.g., name, email address, message content) will be processed in order to handle your inquiry. Legal basis: Article 6(1)(b) of the GDPR (pre-contractual communication) or (f) of the GDPR (legitimate interest in communication). The data will be deleted as soon as it is no longer needed for processing, provided there are no legal retention requirements to the contrary.

    6. Your Rights

    Under the GDPR, you have the following rights in particular:
  • Information regarding the personal data processed (Art. 15 GDPR)
  • Correction of inaccurate data (Art. 16 GDPR)
  • Erasure (“Right to be Forgotten,” Art. 17 GDPR)
  • Restriction of processing (Art. 18 GDPR)
  • Objection to processing (Art. 21 GDPR)
  • Data portability (Art. 20 GDPR)

    • To exercise these rights, simply send an informal notice to: E‑Mail: administrator@krautwedel.com You also have the right to file a complaint with a data protection supervisory authority.

    7. Current version of this Privacy Policy

    As of: June 2026 I reserve the right to update this privacy policy if the website or the legal situation changes.