Rankbook.com has a three-month global Alexa traffic rank of 266,633. While the site is ranked #171,091 in the US, where we estimate that 26% of its visitors are located, it is also popular in India, where it is ranked #106,154. Compared with all internet users, the site's users are disproportionately male, and they are disproportionately both high- and low-income, childless users browsing from home. The fraction of visits to this site referred by search engines is approximately 11%, and Rankbook.com is relatively popular among users in the city of Buenos Aires (where it is ranked #16,417).