400.cn is tracked by us since April, 2011. Over the time it has been ranked as high as 1 459 in the world, while most of its traffic comes from Japan, where it reached as high as 3 357 position. It was owned by several entities, from 陈清瑞 to 苏州乐讯网络通讯有限公司, it was hosted by CHINANET jiangsu province network, China Internet Network Information Center and others.

400 has a decent Google pagerank and bad results in terms of Yandex topical citation index. We found that 400.cn is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, 400.cn is quite a safe domain with no visitor reviews.