Keldysh.ru is tracked by us since April, 2011. Over the time it has been ranked as high as 201 599 in the world, while most of its traffic comes from Russian Federation, where it reached as high as 11 340 position. Textbook.keldysh.ru receives less than 1% of its total traffic. It was owned by several entities, from Keldysh Institute of Applied Mathematics to Keldysh Institute of Applied Mathematics of Russian Academy of Sciences, it was hosted by 4-th Science Division of Keldysh Institute, Keldyash Institute of Applied Mathematics Russian Academy of Sciences and others. While RUCENTER-REG-RIPN was its first registrar, now it is moved to RU-CENTER-RU.

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