Worldcat.org is tracked by us since April, 2011. Over the time it has been ranked as high as 2 519 in the world, while most of its traffic comes from USA, where it reached as high as 1 131 position. Uum.on.worldcat.org receives less than 3.16% of its total traffic. It was owned by several entities, from OCLCOnlineComputer Library Center Inc of OCLCOnlineComputer Library Center Inc to OCLC Online Computer Library Center Inc of OCLC Online Computer Library Center Inc, it was hosted by OCLC Online Computer Library Center Inc., CloudFlare Inc. and others.

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