A tool that helps website owners understand how much traffic they receive from Twitter and the effectiveness of Twitter integrations on their sites. Includes Twitter Conversion Tracking.
https://dev.twitter.com/blog/introducing-twitter-web-analytics
Analytics and Tracking · Conversion Optimization
Get access to data on 874,581 websites that are Twitter Analytics Customers. We know of 94,322 live websites using Twitter Analytics and an additional 780,259 sites that used Twitter Analytics historically and 59,939 websites in the United States.
Get a list of 874,581 websites using Twitter Analytics which includes location information, hosting data, contact details, 94,322 currently live websites and an additional 675,776 domains that redirect to sites in this list. 780,259 sites that used this technology previously and 59,939 websites in the United States currently using Twitter Analytics.