DENIC eG, which is based in Germany, and the domain providers associated with it as a cooperative are responsible for assigning a domain with the German top-level domain "de". When choosing a domain, it can be useful to take a few SEO criteria into account.
In a judgment of September 18, 2007, the European Court of Human Rights ruled that a domain name is a property right under Article 17 (1) of the EU Charter of Fundamental Rights.
Further references:
https://de.wikipedia.org/wiki/Domain_(Internet)
https://www.ihk-muenchen.de/de/Service/Recht-und-Steuern/Internetrecht/…
The following video provides an introduction to the general functioning of the Internet: