51sai.com is tracked by us since July, 2015. Over the time it has been ranked as high as 312 899 in the world, while most of its traffic comes from China, where it reached as high as 28 122 position. It was owned by several entities, from jin of Bei Jing Wo Yao Sai Xin Xi Ji Shu You Xian Gong Si to Nexperian Holding Limited of Nexperian Holding Limited, it was hosted by Aliyun Computing Co. LTD, China Internet Network Information Center and others. While HICHINA ZHICHENG TECHNOLOGY LTD. was its first registrar, now it is moved to Alibaba Cloud Computing (Beijing) Co. Ltd..

51sai has the lowest Google pagerank and bad results in terms of Yandex topical citation index. We found that 51sai.com is poorly ‘socialized’ in respect to any social network. According to Google safe browsing analytics, 51sai.com is quite a safe domain with no visitor reviews.