Cusdn.org.cn is tracked by us since May, 2011. Over the time it has been ranked as high as 2 059 199 in the world, while most of its traffic comes from USA, where it reached as high as 472 786 position. It was owned by several entities, from 李林南 to 孙相瑞, it was hosted by Beijing Topnew Info&Tech co. LTD., Hangzhou Alibaba Advertising Co.Ltd. and others.

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