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 57,216 websites that are Alexa Traffic Rank Customers. We know of 5,731 live websites using Alexa Traffic Rank and an additional 51,485 sites that used Alexa Traffic Rank historically and 3,773 websites in the United States.
Get a list of 57,216 websites using Alexa Traffic Rank which includes location information, hosting data, contact details, 5,731 currently live websites and an additional 2,278 domains that redirect to sites in this list. 51,485 sites that used this technology previously and 3,773 websites in the United States currently using Alexa Traffic Rank.