Each type of SSL certificate name represents the validation steps taken before the certificate was issued.
Domain Validated certificates are for the verification of the URL owner.
Organization Validated certificates authenticate the URL owner and verify the affiliation of the business entity.
Extended Validation certificates, which are high-assurance identity certificates, require verification of the domain owners, business organizations and legal entities involved.
The process at the DV level is very simple. The buyer must only prove that they have control of the URL or domain. The CA sends an email to the domain owner as per the WHOIS database. Although this is convenient if you require a certificate immediately, it should not be relied upon.
The extra validation steps and layers required to obtain OV and EV certificates is what makes them different. CAs must verify both OV and EV certificates. They also need to know details about the associated business, such as name, type, address, and status.
Nine additional steps are required for EV. These include verification of a business’s public phone number, length-of-business, registration number and jurisdiction. A domain fraud check, contact check and a call to authenticate the applicant’s employment status are also required.