RapidSSL certificate provider.
http://rapidssl.com
SSL Certificates
Get access to data on 11,796,637 websites that are RapidSSL Customers. We know of 1,811,049 live websites using RapidSSL and an additional 9,985,588 sites that used RapidSSL historically and 836,279 websites in the United States.
Get a list of 11,796,637 websites using RapidSSL which includes location information, hosting data, contact details, 1,811,049 currently live websites and an additional 991,758 domains that redirect to sites in this list. 9,985,588 sites that used this technology previously and 836,279 websites in the United States currently using RapidSSL.