What is the difference between the validation processes of Digicert EV SSL and OV SSL certificates?

1. The validation required for Digicert EV SSL and OV certificates is the same (domain validation + organization validation).
2. Compared with OV, EV SSL enterprise validation can only verify the phone number through Qichacha, Baidu Maps and 114 directory assistance. Email verification is not allowed, and contact information registered on the official website is not supported.
3. After EV validation is completed, you also need to process an approve email sent to the contact email address.