The controller responsible for data processing on this website is:
Kolja Blauhut (private individual)
Email: koljablauhut@gmail.com
When you visit this website, Vercel processes standard server log data — your IP address, browser type, referring URL, and page requested — for a limited time to ensure security and availability. This is a legitimate interest under Art. 6(1)(f) GDPR.
We use two analytics tools on this website. Vercel Analytics collects aggregate traffic patterns (pages viewed, device types, countries) without cookies and without tracking individual users across sessions. PostHog collects anonymised usage events (page views, button clicks) to help us understand how visitors use the site. PostHog uses a first-party cookie to distinguish sessions; it does not use that data for advertising. The legal basis for both is our legitimate interest in improving the website under Art. 6(1)(f) GDPR.
This website uses one first-party cookie set by PostHog (ph_*) to distinguish sessions and measure returning visits. It contains a random identifier and no personal data. It is not used for advertising or shared with third parties for targeting purposes. Vercel Analytics operates without any cookies. No advertising cookies are used on this site.
PostHog (web analytics): We use PostHog to collect anonymised usage events on this website. PostHog Inc., 965 Mission Street, Suite 175, San Francisco, CA 94103, USA processes this data as a data processor on our behalf. Data is stored in the EU (PostHog Cloud EU). PostHog does not use your data for advertising. PostHog's privacy policy applies: posthog.com/privacy.
Vercel (hosting and analytics): Our website and backend API are hosted by Vercel Inc., 340 Pine Street, Suite 701, San Francisco, CA 94104, USA. Vercel's privacy policy applies: vercel.com/legal/privacy-policy.