Here is the Certificate Validation Process from DigiCert's website: Certificate Validation Process
YOUR ROLE IN THE VALIDATION PROCESS
Once you’ve placed your order, our global team of experts will start the validation process. DigiCert validates certificates according to strict guidelines put forth by the Certification Authority Browser Forum. The strictness of these guidelines means validation doesn’t happen immediately, but they’re key to ensuring the type of robust protections you rely on to keep your sites secure.
Validation times vary, but our team will work around the clock to get your certificate issued as quickly as possible—and your cooperation will help speed up the process.
Organization Validated (OV) validation process:
1. Company validation
2. Locality validation
3. Telephone validation
4. Domain validation
5. Final verification call