Site seal from SSL Certificates company DigiCert.
http://www.digicert.com/
Widgets · SSL Seals
Get access to data on 27,078 websites that are DigiCert Customers. We know of 2,871 live websites using DigiCert and an additional 24,207 sites that used DigiCert historically and 1,673 websites in the United States.
Get a list of 27,078 websites using DigiCert which includes location information, hosting data, contact details, 2,871 currently live websites and an additional 13,044 domains that redirect to sites in this list. 24,207 sites that used this technology previously and 1,673 websites in the United States currently using DigiCert.