Privacy

This site is deliberately built to collect as little as possible: no cookies, no analytics or tracking, no embedded third-party content, no forms. Fonts are served from this server, not from Google Fonts.

Controller

Christian Gründer
Wilhelmstraße 88
10117 Berlin, Germany
Email: legal@christiangruender.com

Server log files

This site is hosted by Cloudflare, Inc. (101 Townsend St, San Francisco, CA 94107, USA). When a page is requested, technically necessary data is processed: IP address, time of the request, the file requested, amount of data transferred, browser type and operating system.

The legal basis is Art. 6 (1) (f) GDPR. The legitimate interest is the secure and reliable operation of this site. A data processing agreement is in place with Cloudflare; transfer to the USA is covered by the EU Standard Contractual Clauses and Cloudflare's certification under the EU-US Data Privacy Framework.

Storage on your device

If you use the light/dark switch, that choice is stored locally in your browser (localStorage) so it persists on your next visit. It is not a cookie, it is never sent to the server, and it is not evaluated. You can delete it at any time through your browser settings.

External links

This site links to external services, among them X, LinkedIn, GitHub and the App Store. Their providers alone are responsible for any data they process. Loading this page sends them nothing — only following a link does.

Your rights

You have the right of access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20) and objection (Art. 21). Please use the address above.

You also have the right to lodge a complaint with a supervisory authority (Art. 77 GDPR). The competent authority here is: Berliner Beauftragte für Datenschutz und Informationsfreiheit, Alt-Moabit 59–61, 10555 Berlin, Germany.