4000a.cn is tracked by us since April, 2011. Over the time it has been ranked as high as 71 299 in the world, while most of its traffic comes from China, where it reached as high as 7 658 position. It was owned by several entities, from 刘成智 to 张娟, it was hosted by Namecheap Inc., DXTL HK and others.

4000a has the lowest Google pagerank and bad results in terms of Yandex topical citation index. We found that 4000a.cn is heavily ‘socialized’ in respect to Google+ shares (590K) and Facebook shares (1). According to Siteadvisor and Google safe browsing analytics, 4000a.cn is quite a safe domain with no visitor reviews.