The Authorize.Net Payment Gateway can help you accept credit card and electronic check payments quickly and affordably.
http://authorize.net/
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Get access to data on 567,776 websites Authorize.net Customers. We know of 296,737 live websites using Authorize.net and an additional 271,039 sites that used Authorize.net historically and 227,087 websites in the United States.
Authorize.net websites that are also using other technologies.
Get a list of 567,776 websites using Authorize.net which includes location information, hosting data, contact details, 296,737 currently live websites and an additional 317,761 domains that redirect to sites in this list. 271,039 sites that used this technology previouslyand 227,087 websites in the United States currently using Authorize.net.
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These are sites that we think might use Authorize.net in the future because of their similarity to other sites that already do.