This is a part of
curl's verbose output when connecting to the HTTPS site of Google.
* Server certificate: * subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=www.google.com * start date: 2014-03-12 09:38:30 GMT * expire date: 2014-06-10 00:00:00 GMT * subjectAltName: www.google.com matched * issuer: C=US; O=Google Inc; CN=Google Internet Authority G2 * SSL certificate verify ok.
From this output is it possible to find out if a website using DV, OV or EV certificates?
I find that it is easy to identify EV certificates as their
issuer: field contains either Extended Validation CA or EV CA. But how does one differentiate DV from OV?