Kalkula.cz is tracked by us since April, 2011. Over the time it has been ranked as high as 518 099 in the world, while most of its traffic comes from Czech Republic, where it reached as high as 3 550 position. It was owned by several entities, from Ladislav Stejskal registrar: REG-ZONER to Ladislav Stejskal of Ladislav Stejskal, it was hosted by RIONET, Valvera s.r.o. and others. While REG-ZONER was its first registrar, now it is moved to CZ-NIC.

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