Digicert TLS/SSL Certificates

 Domain Validated (DV) certificates provide the lowest level of identity authentication, meaning anonymous entities can get a certificate. 

 Organization Validated (OV) certificates provide additional checks to ensure identity and brand protections.  

 Extended Validation (EV) certificates guarantee the highest standard of identity and brand protections. With EV, brands signal a commitment to customers that transactions are secure. 

 Single domain SSL certificates is precisely what the name suggests — it’s an SSL/TLS certificate that secures only one fully qualified domain name (FQDN) per certificate. It will, however, not cover any other domain name. While generating the certificate signing request (CSR), if you create it with a WWW, almost all certificate authorities (CAs) will give you the non-WWW version free of cost. 

 Wildcard certificates secure a single domain and up to 250 subdomains. And now, every DigiCert certificate can be bought as a wildcard by adding SANs, so you can easily manage multiple subdomains and save. 

 Multi-Domain Certificates, also called SAN certificates, offer boundless flexibility and complete control over the Subject Alternative Name field. And now, any DigiCert certificate can be configured to allow multi-domain. These certificates are ideal for securing many names across different domains and subdomains (e.g., Exchange/OCS environments). You also have the option to add, change, and delete any of the SANs on the fly to reflect the evolving needs of your network.