the website contains button that provides traffic rank details from Alexa.
http://www.alexa.com/site/site_stats/signup
Widgets · Web Traffic
Get access to data on 57,903 websites that are Alexa Traffic Rank Customers. We know of 5,699 live websites using Alexa Traffic Rank and an additional 52,204 sites that used Alexa Traffic Rank historically and 3,771 websites in the United States.
Get a list of 57,903 websites using Alexa Traffic Rank which includes location information, hosting data, contact details, 5,699 currently live websites and an additional 2,112 domains that redirect to sites in this list. 52,204 sites that used this technology previously and 3,771 websites in the United States currently using Alexa Traffic Rank.