Pirsa.org is tracked by us since July, 2012. Over the time it has been ranked as high as 244 499 in the world, while most of its traffic comes from China, where it reached as high as 23 143 position. It was owned by several entities, from Troy Schlueter of Perimeter Institute to BEN DAVIES of Perimeter Institute, it was hosted by PSINet Inc., CloudFlare Inc. and others.

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