Jan39.com is tracked by us since April, 2011. Over the time it has been ranked as high as 391 499 in the world, while most of its traffic comes from Japan, where it reached as high as 13 248 position. It was owned by several entities, from Kirakutei Ltd. Masato Kaji () to MASATO KAJI of KIRAKUTEI LTD., it was hosted by SAKURA Internet Inc., SAKURA Internet Inc. and others. While ENOM INC. was its first registrar, now it is moved to Netowl Inc..

Jan39 has a decent Google pagerank and bad results in terms of Yandex topical citation index. We found that Jan39.com is poorly ‘socialized’ in respect to any social network. According to Siteadvisor and Google safe browsing analytics, Jan39.com is quite a safe domain with no visitor reviews.