Skip to content

Privacy

Which data is processed when you visit this website or send a request. The German version is the legally binding one.

As of October 22, 2026

Controller

Carl-Uwe Würfel, reachable at info@carl-wuerfel.de.

Hosting

The website is delivered and protected through Cloudflare. This involves connection data that is technically required, in particular the IP address, time, requested address and browser information. This serves to provide the website and run it securely (Art. 6(1)(f) GDPR). Cloudflare operates internationally, so processing outside the EU, especially in the US, is possible. More information: Cloudflare privacy policy and data processing addendum.

No trackers, no external fonts

The website uses no advertising or analytics services and sets no cookies. Fonts and images are served by this website itself. The interactive examples, such as the gateway walkthrough, run entirely in your browser and send nothing to a server.

Contact form and email

The form sends the reason for your request, your name, email address, message and, if you choose, your organization. The details go through Cloudflare (Workers and email routing) to me as an email and are not stored on the website. They are used only to reply (Art. 6(1)(f) GDPR, and Art. 6(1)(b) for requests about an agreement) and are deleted once they are no longer needed and no retention obligation applies.

External links

Links to LinkedIn, trade media and other services lead to third-party websites. You leave this website only when you open them; the provider’s notices apply there.

Your rights

Within the legal requirements you have the right to access, rectification, erasure, restriction of processing and data portability, and the right to object to processing based on legitimate interests. You can lodge a complaint with a data protection supervisory authority.

    ↑ ↓ select · Enter open · Esc close