K12.ca.us is tracked by us since April, 2011. Over the time it has been ranked as high as 3 219 in the world, while most of its traffic comes from USA, where it reached as high as 577 position. Rsf.k12.ca.us receives less than 3.79% of its total traffic. It was owned by several entities, from NEUSTAR of NEUSTAR to usTLD Locality Administrator of Registry Services LLC, it was hosted by San Diego County Office of Education and SureSupport LLC.

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