Olivier Dobberkau

+49 (0)69 - 247 52 18-0



dkd Internet Service GmbH
Kaiserstraße 73

D-60329 Frankfurt am Main


T: +49 (0)69 - 2475218 0
F: +49 (0)69 - 2475218 99

E: info(at)


Managing Associates: Olivier Dobberkau, Götz Wegenast, Søren Schaffstein, Christian Zabanski

Register court: Amtsgericht Frankfurt am Main

Register number: HRB 45590

VAT number: DE 197946630

Notice of liability: Despite careful control of website contents we do not assume liability for contents of external links. Solely their operators are in charge of all page contents.

All contents have been copyrighted to the publishers of these website.
Personal use of this material is permitted. However, permission to reprint or republish material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from dkd or the approriate publisher.

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Our website uses Matomo (, a data protection-compliant open source web analytics service. This way we have the possibility to optimize websites for you and make them more user-friendly. Matomo uses so-called cookies, text files, which are stored on your computer and allow a website usage analysis. The collected data (including time, retrieved page, used browser, operating system) are stored in a database. All IP addresses are shortened prior to storage (the last tuple is removed). We only know which network your request came from, but not from which computer. The information on the use of this website (including an anonymous IP address) generated by the cookie remain under the data authority of dkd.

The dkd uses this information to evaluate the use of and to compile reports on the website activities. There is no linking of the stored data with other data sources or a transfer to third parties.