Crup.com.cn is tracked by us since April, 2011. Over the time it has been ranked as high as 123 277 in the world, while most of its traffic comes from China, where it reached as high as 6 900 position. It was owned by several entities, from 谢爱芳 中国人民大学出版社 to 中国人民大学出版社有限公司, it was hosted by Beijing Bitone United Networks, Beijing Bitone United Networks Technology Service Co.Ltd. and others.

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