Docbook.org is tracked by us since April, 2011. Over the time it has been ranked as high as 481 799 in the world, while most of its traffic comes from USA, where it reached as high as 257 406 position. Tdg.docbook.org receives less than 1% of its total traffic. It was owned by several entities, from Norman Walsh University of North Carolina to Whois Agent of Domain Protection Services Inc. While was its first registrar, now it is moved to Public Interest Registry.

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