Openclass.hk is tracked by us since July, 2012. Over the time it has been ranked as high as 376 799 in the world, while most of its traffic comes from Hong Kong, where it reached as high as 5 873 position. It was owned by several entities, from Email: enquiry@hkdnr.hk Hotline: +852 2319 1313 to ART GROUP LIMITED, it was hosted by HKNet Company Limited, Team Internet AG and others. While was its first registrar, now it is moved to InterNetX GmbH.

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