How does the DigiCert site seal work?
The DigiCert site seal, when clicked on, opens a window to DigiCert’s verification page. The variables passed in the seal, as well as the refering document (the website the seal is on) are processed against DigiCert’s information; a valid certificate generates an Secure Site response. (Or, in the case of simple authenticity seals, an Authentic Site response is generated.