This could be the following of a previous thread i did
On my server, running on SNI and multiple domain and certificate.
All certs are checked, and OK with https://www.ssllabs.com/ssltest/
But trying to find solution to another issue I got I discover something Weird.
Let’s say I Got
Browser, ssllabs, googletransparencyreport are giving me the correct CN
But when i checked with openssl I got something different
~$ openssl s_client -connect www.domain2.com:443 -prexit CONNECTED(00000003) depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3 verify return:1 depth=1 C = US, O = Let's Encrypt, CN = Let's Encrypt Authority X3 verify return:1 depth=0 CN = domain1.com verify return:1 --- Certificate chain 0 s:/CN=domain1.com i:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 1 s:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 i:/O=Digital Signature Trust Co./CN=DST Root CA X3
As you could see CN are different from domain checked??