21tb.com is tracked by us since April, 2011. Over the time it has been ranked as high as 4 159 in the world, while most of its traffic comes from China, where it reached as high as 370 position. It was owned by several entities, from information about or related to a domain name registration record. : li zhidong to REDACTED FOR PRIVACY of REDACTED FOR PRIVACY, it was hosted by Hangzhou ZhiYu Network Technology Co.Ltd., Shanghai UCloud Information Technology Company Limited and others. While XIN NET TECHNOLOGY CORPORATION was its first registrar, now it is moved to Xin Net Technology Corporation.

21tb has a high Google pagerank and bad results in terms of Yandex topical citation index. We found that 21tb.com is poorly ‘socialized’ in respect to any social network. According to MyWot and Google safe browsing analytics, 21tb.com is a fully trustworthy domain with no visitor reviews.