REFA Bundesverband is the nonprofit organization in Darmstadt, Germany.
According to PR-model, refa.de is ranked 606,252nd in multilingual Wikipedia, in particular this website is ranked 58,332nd in German Wikipedia.
The website is placed before ancientkelticchurch.org and after marathonmartinezrenewables.com in the BestRef global ranking of the most important sources of Wikipedia.