Zenken.com is tracked by us since July, 2013. Over the time it has been ranked as high as 735 299 in the world, while most of its traffic comes from Japan, where it reached as high as 60 357 position. It was owned by several entities, from Shimono Genta to Genta Shimono of Japan Construction Engineers Association, it was hosted by Japan Network Information Center and Japan Construction Engineers' Association. 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.

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