Sysifos.cz is tracked by us since April, 2011. Over the time it has been ranked as high as 591 899 in the world, while most of its traffic comes from Czech Republic, where it reached as high as 3 928 position. It was owned by several entities, from Občanské sdružení SISYFOS - Český klub skeptiků admin-c: CID:ID128642352988241-MITONCZ to Jiří Smetana of Web Invest s.r.o., it was hosted by Petr Bydzovsky housing TTC Praha, WEBGLOBE s.r.o. and others. While REG-STABLE was its first registrar, now it is moved to CZ-NIC.

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