Gottfried Wilhelm Leibniz Library is the State Library of Lower Saxony (Germany), located in Hanover.
According to PR-model, gwlb.de is ranked 54,710th in multilingual Wikipedia, in particular this website is ranked 6,939th in German Wikipedia.
The website is placed before alepe.pe.gov.br and after readwhere.com in the BestRef global ranking of the most important sources of Wikipedia.