51.com is tracked by us since April, 2011. Over the time it has been ranked as high as 365 in the world, while most of its traffic comes from China, where it reached as high as 628 position. It was owned by several entities, from information about or related to a domain name registration record. : Shanghai Five One Network Development Co. Ltd. to REDACTED FOR PRIVACY of REDACTED FOR PRIVACY, it was hosted by China Unicom AnHui province network, 16 COLLYER QUAY and others. While XIN NET TECHNOLOGY CORPORATION was its first registrar, now it is moved to Xin Net Technology Corporation.

51 has a high Google pagerank and bad results in terms of Yandex topical citation index. We found that 51.com is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, 51.com is quite a safe domain with mostly positive visitor reviews.