Privacy Policy

This English version is provided for convenience. The German Datenschutzerklärung is legally binding.

Last updated: October 2026

1. Controller

The controller responsible for data processing on this website under the General Data Protection Regulation (GDPR) is:

Liying Zhu, RheinWeg
Im Rosengärtchen 70, 61440 Oberursel (Taunus), Germany
Phone: +49 160 1168307
Email: rheinwegde@gmail.com

2. No cookies, no tracking

This website sets no cookies, uses no analytics or tracking tools, and embeds no third-party content such as fonts, videos or maps. All images and files are served from our own web space.

3. Hosting and server log files

This website is hosted by Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, USA. When you visit the website, Vercel processes technically necessary data in server log files, in particular:

  • IP address
  • date and time of access
  • page or file requested
  • referrer URL (the page visited before)
  • browser type, operating system and device type

This data is needed to deliver the website and to keep it secure and stable. The legal basis is Art. 6 (1) (f) GDPR. Our legitimate interest is a secure and working website. The data is deleted as soon as it is no longer needed for these purposes.

Data may be transferred to the USA in the process. Vercel is certified under the EU-US Data Privacy Framework. The processing is also based on Vercel’s Data Processing Addendum, which incorporates the EU Standard Contractual Clauses. For more information, see Vercel’s privacy policy.

4. Contact by email or phone

If you contact us by email or phone, we process your details (for example name, email address, phone number and the content of your inquiry) to answer your inquiry. The legal basis is Art. 6 (1) (b) GDPR if your inquiry relates to a contract or pre-contractual steps, for example a workshop booking, and otherwise Art. 6 (1) (f) GDPR. Our legitimate interest is answering your inquiry.

Our email mailbox is provided by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland. A transfer to the USA cannot be ruled out. Google is certified under the EU-US Data Privacy Framework.

We delete your inquiry once it has been fully handled, unless statutory retention obligations, for example under commercial or tax law, require us to keep it.

This website contains links to websites of other providers, for example GitHub, Claude Academy or BenAI. Data is only transferred to the respective provider when you click such a link. Processing there is governed by that provider’s privacy policy.

6. Your rights

Within the limits of the law, you have the right to:

  • access the data we store about you (Art. 15 GDPR)
  • rectification of inaccurate data (Art. 16 GDPR)
  • erasure of your data (Art. 17 GDPR)
  • restriction of processing (Art. 18 GDPR)
  • data portability (Art. 20 GDPR)
  • object to processing based on Art. 6 (1) (f) GDPR (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. The authority responsible for us is the Hessian Commissioner for Data Protection and Freedom of Information (Der Hessische Beauftragte für Datenschutz und Informationsfreiheit), Gustav-Stresemann-Ring 1, 65189 Wiesbaden, Germany.

Choose your language