Planetarium.cz is tracked by us since May, 2012. Over the time it has been ranked as high as 892 499 in the world, while most of its traffic comes from Czech Republic, where it reached as high as 6 435 position. It was owned by several entities, from Jan Sifner of Jan Sifner to Jakub Rozehnal of Hvězdárna a planetárium hl. m. Prahy p.o., it was hosted by Cesky Bezdrat s.r.o. and Web4U s.r.o..

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