Verlag J.H.W. Dietz Nachf. Bonn is the German publishing house.
According to PR-model, dietz-verlag.de is ranked 661,723rd in multilingual Wikipedia, in particular this website is ranked 63,965th in German Wikipedia.
The website is placed before cathedralhighschool.org and after uusteater.ee in the BestRef global ranking of the most important sources of Wikipedia.