Leetcode.cn is tracked by us since June, 2017. Over the time it has been ranked as high as 870 in the world, while most of its traffic comes from China, where it reached as high as 120 position. It was owned by several entities, from 翟翔 to 领扣网络（上海）有限公司, it was hosted by China Internet Network Information Center, Alibaba (US) Technology Co. Ltd. and others.

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