There are 3,632 sites with a better three-month global Alexa traffic rank than Webpagetest.org. Visitors to the site view 6.0 unique pages each day on average. About 17% of visits to the site consist of only one pageview (i.e., are bounces). Compared with the overall internet population, its users are disproportionately male, and they are disproportionately childless Caucasians between the ages of 25 and 45 who have postgraduate educations and browse from work. While we estimate that 19% of Webpagetest.org's visitors are in the US, where it is ranked #3,885, it is also popular in the Netherlands, where it is ranked #1,607.