Extended Validation or EV
These certificates are the lowest cost means of securing a website but do not provide authentication or validation of the business behind the website. Unlike EV and OV certificates, DV certs provide are validated and provisioned automatically via an online interface using a system of challenge-response emails.
E-commerce merchants are going beyond the gold padlock to go green with Extended Validation SSL Certificates, the e-commerce standard for trust and security. The EV certificate was designed to strengthen e-commerce security and combat phishing attacks to make EV SSL the most complete SSL certificate available. Visual assurance helps e-commerce merchants increase trust, reduce shopping cart abandonment, and build long-term revenue.