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 941,594 websites that are Twitter Analytics Customers. We know of 106,636 live websites using Twitter Analytics and an additional 834,958 sites that used Twitter Analytics historically and 72,540 websites in the United States.
Get a list of 941,594 websites using Twitter Analytics which includes location information, hosting data, contact details, 106,636 currently live websites and an additional 745,790 domains that redirect to sites in this list. 834,958 sites that used this technology previously and 72,540 websites in the United States currently using Twitter Analytics.