Kobv.de is tracked by us since April, 2011. Over the time it has been ranked as high as 77 231 in the world, while most of its traffic comes from Germany, where it reached as high as 3 392 position. Opus4.kobv.de receives about 55.08% of its total traffic. It was owned by several entities, from rainer wesel to Stefan Duering, it was hosted by Konrad-Zuse-Zentrum fuer Informationstechnik Berlin, Zuse Institute Berlin and others.

Opus4.kobv has a high Google pagerank and bad results in terms of Yandex topical citation index. We found that Opus4.kobv.de is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, Opus4.kobv.de is quite a safe domain with no visitor reviews.