Hi, I have created and put online a webservice, which gives traffic estimation based on Alexa rank. The site shows traffic history for last 7 years. http://www.rank2traffic.com/ It uses Alexa Ranking as data source, so it is not perfect in exact numbers estimation. Still, it is useful for discovering trends. How to use my site to your advantage: Estimate visitor counts of YourPotentialCompetitor even before launching your business in a specific niche. Spy on your competitors - see their trends, their rises, and their falls. Hope you would find it useful! Anyway, please, drop me a line; I would like to know your opinion. Regards, Andrew
Alexa has really fallen behind over the years as an accurate metric tool for traffic. Have you had a look at similarweb.com?