Sigma-tau.es is tracked by us since April, 2011. Over the time it has been ranked as high as 1 298 999 in the world, while most of its traffic comes from Spain, where it reached as high as 94 507 position. It was hosted by Provider Local Registry, CloudFlare Inc. and others.

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