Certificate provided by DigiCert.
http://www.digicert.com/
SSL Certificates · Root Authority
Get access to data on 10,686,680 websites that are DigiCert SSL Customers. We know of 1,584,720 live websites using DigiCert SSL and an additional 9,101,960 sites that used DigiCert SSL historically and 893,351 websites in the United States.
Get a list of 10,686,680 websites using DigiCert SSL which includes location information, hosting data, contact details, 3,419,530 currently live websites which includes 1,834,810 domains that redirect to sites in the list. 9,101,960 sites that used this technology previously and 893,351 websites in the United States currently using DigiCert SSL.