Jc-21.ac.jp is tracked by us since April, 2011. Over the time it has been ranked as high as 622 799 in the world, while most of its traffic comes from Japan, where it reached as high as 80 028 position. It was owned by several entities, from Tohoku Computer College Tohoku Computer College to Iwabuchi Fumiko of Tohoku Computer College, it was hosted by KDDI Web Communications Inc, KDDI Web Communications Inc. and others.

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