Jspen.jp is tracked by us since January, 2014. Over the time it has been ranked as high as 420 899 in the world, while most of its traffic comes from Japan, where it reached as high as 26 962 position. It was owned by several entities, from Jeff Corporation Co. Ltd to Taka Enterprise Ltd. WHOIS Privacy Service, it was hosted by SAKURA Internet Inc., Team Internet AG and others.

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