K12.pa.us is tracked by us since April, 2011. Over the time it has been ranked as high as 11 281 in the world, while most of its traffic comes from USA, where it reached as high as 2 121 position. Crsd.k12.pa.us receives less than 3.56% of its total traffic. All this time it was owned by Stephen Cunningham of Pittsburgh Supercomputing Center, it was hosted by IU8-9-10 Regional Wan Consortium, CloudFlare Inc. and others.

Crsd.k12 has a mediocre Google pagerank and bad results in terms of Yandex topical citation index. We found that Crsd.k12.pa.us is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, Crsd.k12.pa.us is quite a safe domain with no visitor reviews.