Wall21.cn is tracked by us since April, 2011. Over the time it has been ranked as high as 24 649 in the world, while most of its traffic comes from China, where it reached as high as 3 500 position. It was owned by several entities, from 张志华 深圳市帷幕网络科技有限公司 to 深圳市帷幕网络科技有限公司, it was hosted by Alibaba.com LLC, Shanghai UCloud Information Technology Company Limited and others.

Wall21 has a decent Google pagerank and bad results in terms of Yandex topical citation index. We found that Wall21.cn is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, Wall21.cn is quite a safe domain with no visitor reviews.