What is an Extended Validation Multi-Domain Certificate?
Extended Validation (EV) Multi-Domain Certificates are SSL (Secure Socket Layer) certificates that offer the highest degree of authentication and protection using one certificate for many domains and subdomains. To ensure this, they require more evaluation and documentation checks for applicant websites than other certificate types.
Extended Validation Multi-Domain Certificates include a manual validation step to confirm:
The legal, physical, and operational existence of the entity.
The identity of the entity matches official records.
That the entity has exclusive right to use the domains specified.
That the entity has properly authorized the issuance of the certificate.