Hatena.ne.jp is tracked by us since April, 2011. Over the time it has been ranked as high as 278 in the world, while most of its traffic comes from Japan, where it reached as high as 19 position. Serif.hatena.ne.jp receives less than 4.6% of its total traffic. It was owned by several entities, from Kondo Junya Hatena Co. Ltd. to Kurisu Yoshiomi of Hatena Co. Ltd., it was hosted by SAKURA Internet Inc., Amazon Technologies Inc. and others.

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