All three certificates provide top-level encryption to users. However, the level of security and certificate validation process creates a huge difference in these three: For DV certificates the certificate authority looks through your application to check if you are the owner of the domain you seek to secure. This takes as little as 5 minutes. These certs have a security padlock with some basic issuance information. The validation process of the Organization Validated certificates is pretty easy once your company is a legitimate one. To issue OV SSLs, the Certificate Authority needs information for a 5-step process: company authentication, locality presence, telephone confirmation, domain verification, and a final verification call. EV certificates have a more rigorous validation process since this certificate offers the highest level of trust. The security offer is undebatable, and the name of the company will be shown at the branded address bar. This provides absolute encryption with visible trust indicators like a Dynamic Sectigo TrustLogo.