Legal
Privacy
This website is deliberately minimal. It sets no cookies, embeds no third-party content and loads its fonts from its own server. For anonymous reach measurement we use self-hosted, cookieless analytics software (Umami; see below).
Controller
Dr. Bernd Bürger, Zwieselstr. 1, 83404 Ainring, Germany. Email: [email protected]
Hosting and server logs
The website is hosted on a server in Germany. When you visit, the server technically processes the data your browser transmits (such as IP address, date and time, requested page, referrer and browser type) in order to deliver the page and keep it secure. Log data is deleted after a short period. Legal basis: Art. 6(1)(f) GDPR (legitimate interest in the secure and reliable operation of the website).
Cloudflare
The website is delivered via the content delivery network of Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA, which protects it against attacks and speeds up delivery. Your requests therefore pass through Cloudflare servers, which may be located outside the EU. Cloudflare is certified under the EU-U.S. Data Privacy Framework; in addition, EU Standard Contractual Clauses apply. Legal basis: Art. 6(1)(f) GDPR. More information: cloudflare.com/privacypolicy.
Web analytics: Umami (self-hosted, cookieless)
Since October 2026 we measure reach with the open-source software Umami, which runs on our own server in Germany (z.docbb.de); no data is passed on to third parties. Umami sets no cookies, stores nothing on your device, does not store your IP address and respects your browser's Do Not Track setting. To tell visits apart, Umami briefly uses your IP address and browser identifier to compute a one-way hash combined with a secret value that changes every month; the IP address itself is discarded after this step and after deriving the country, region and city. Processed data: pages visited and time of visit, clicks on links to other websites, referring website, campaign parameters in the address, browser, operating system, device type, screen size, language and approximate location (country, region, city). The statistics are kept as long as they are needed to evaluate the website.
Legal basis: Art. 6(1)(f) GDPR (legitimate interest in data-minimising reach measurement). As no cookies are set and nothing is read from or stored on your device, no consent under § 25 TDDDG is required. You can object at any time by enabling "Do Not Track" in your browser or by writing to [email protected].
Matomo (until 1 November 2026)
Until 1 November 2026 we additionally used the open-source software Matomo, likewise on our own server in Germany (stats.docbb.de), without cookies and with a truncated IP address. We have transferred the statistics collected up to then to Umami without IP addresses. We keep the original Matomo database as an archive on our server; nothing is added to it any more.
Newsletter
If you subscribe to our newsletter, we process your email address and, if you provide it, your first name to send you the Code 4 Leadership newsletter. The sign-up form sends your details to our sign-up service at fb.c4lead.com, which runs on the same server in Germany. You only receive the newsletter after confirming your subscription via the link in our confirmation email (double opt-in). Legal basis is your consent (Art. 6(1)(a) GDPR), which you can withdraw at any time via the unsubscribe link in every email or by writing to [email protected]. The newsletter is managed with the open-source software Listmonk on our own server and sent from our own mail server. We keep your data until you unsubscribe. Details: fb.c4lead.com/privacy.
Contact by email
If you write to me, I process your email address and the content of your message solely to answer your enquiry (Art. 6(1)(b) and (f) GDPR). The data is deleted once it is no longer needed, unless statutory retention obligations apply.
External links
Links to other websites (for example the publisher, LinkedIn or docbb.de) only transfer data to those sites once you click them. Their own privacy policies apply there.
Your rights
You have the right to access, rectification, erasure, restriction of processing, data portability and to object to processing (Art. 15–21 GDPR). To exercise these rights, simply send an email. You also have the right to lodge a complaint with a supervisory authority, for example the Bavarian Data Protection Authority (BayLDA), Promenade 18, 91522 Ansbach, Germany.
Last updated: November 2026