Official Tweet Button for sharing articles on websites and counting how many times a URL has been shared.
https://twitter.com/about/resources/buttons#tweet
Widgets
Get access to data on 4,617,177 websites that are Twitter Tweet Button Customers. We know of 979,440 live websites using Twitter Tweet Button and an additional 3,637,737 sites that used Twitter Tweet Button historically and 425,648 websites in the United States.
Get a list of 4,617,177 websites using Twitter Tweet Button which includes location information, hosting data, contact details, 979,440 currently live websites and an additional 620,484 domains that redirect to sites in this list. 3,637,737 sites that used this technology previouslyand 425,648 websites in the United States currently using Twitter Tweet Button.
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