Arena.ne.jp is tracked by us since April, 2011. Over the time it has been ranked as high as 6 709 in the world, while most of its traffic comes from Japan, where it reached as high as 2 173 position. Pro4.arena.ne.jp receives less than 3% of its total traffic. All this time it was owned by Amano Yoshiyuki of NTTPC Communications Incorporated, it was hosted by InfoSphere (NTTPC Communications Inc.).

Pro4.arena has the lowest Google pagerank and bad results in terms of Yandex topical citation index. We found that Pro4.arena.ne.jp is poorly ‘socialized’ in respect to any social network. According to MyWot, Siteadvisor and Google safe browsing analytics, Pro4.arena.ne.jp is a fully trustworthy domain with no visitor reviews.