Rcv4.jp is tracked by us since April, 2011. Over the time it has been ranked as high as 965 999 in the world, while most of its traffic comes from Japan, where it reached as high as 76 671 position. It was owned by several entities, from OPTiM Corporation [Name Server] ns.i-seven.ne.jp to OPTiM Corporation, it was hosted by UCOM Corp, SAKURA Internet Inc. and others.

Rcv4 has a decent Google pagerank and bad results in terms of Yandex topical citation index. We found that Rcv4.jp is poorly ‘socialized’ in respect to any social network. According to Google safe browsing analytics, Rcv4.jp is quite a safe domain with no visitor reviews.