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. V4.21tb.com receives about 9.53% of its total traffic. 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 Alibaba.com LLC, Level 3 Parent LLC and others. While XIN NET TECHNOLOGY CORPORATION was its first registrar, now it is moved to Xin Net Technology Corporation.

V4.21tb has a mediocre Google pagerank and bad results in terms of Yandex topical citation index. We found that V4.21tb.com is poorly ‘socialized’ in respect to any social network. According to Google safe browsing analytics, V4.21tb.com is quite a safe domain with no visitor reviews.