Koushijima.com is tracked by us since May, 2012. Over the time it has been ranked as high as 747 599 in the world. It was owned by several entities, from kenichi kashiwagi of Samurai Factory Inc. to Yoshitaka Ochi of Ninja Tools Inc., it was hosted by Bit-isle, Ninja Tools Inc. and others. While GMO Internet Inc. dba Onamae.com was its first registrar, now it is moved to GMO Internet Group Inc. d/b/a Onamae.com.

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