A quick lookup gave me these:
Berlin School of Economics and Law [https://www.hwr-berlin.de/en/] Hamburg University [https://www.uni-hamburg.de/en.html] University of Heidelberg [https://www.uni-heidelberg.de/en] Some Startup List [https://startup-map.berlin/home]
And even some of the top Alexa websites:
https://www.t-online.de/ https://www.wer-weiss-was.de/
Based on my basic knowledge of the German language, there is no such unusual usage of dashes in the language itself, but there are far too many URLs that use dashes. Any reason/ thoughts?