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This question already has an answer here:

I know that browsers show no difference to the user between OV and DV certificates, but what is a sure way to find out if a certificate IS or ISNT an OV certificate?

Also, are there any technical differences in the cert?

marked as duplicate by user45139, Xander, WhiteWinterWolf, tlng05, SilverlightFox Aug 30 '15 at 19:41

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I know that browsers show no difference to the user between OV and DV certificates, but what is a sure way to find out if a certificate IS or ISNT an OV certificate?

Also, are there any technical differences in the cert?

Another answer partly answers your question: How does an end user differentiate between OV and DV certificates?

DV certificate contains no identifying information in the organization name field. Typically, this value just re-states the domain name or simply says "Persona Not Validated".

The organization name field is not part of a domain validated certificate.

Additionally, the policy identifier is different for DV and OV:

  • Domain Validated: 2.23.140.1.2.1
  • Organization Validated: 2.23.140.1.2.2

You can find this field in Extensions > Certificate Policies.

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