openssl s_client -connect www.perl-community.de:443
CONNECTED(00000268)
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 = www.perl-community.de
verify return:1
---
Certificate chain
 0 s:/CN=www.perl-community.de
   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
 2 s:/CN=www.perl-community.de
   i:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
 3 s:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
   i:/O=Digital Signature Trust Co./CN=DST Root CA X3
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=/CN=www.perl-community.de
issuer=/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
---
No client certificate CA names sent
---
SSL handshake has read 5451 bytes and written 633 bytes
---
New, TLSv1/SSLv3, Cipher is AES256-SHA
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1
    Cipher    : AES256-SHA
    Session-ID: C7DA15DF0422964EE5956856FC0C5D0DABE983EAA04A43E12384EA074852567A
    Session-ID-ctx:
    Master-Key: D80116938AB75849CA527FBC4119C2404567EBA8F6D367473EBCC2D7D29FB40F8034D8CE25AB66C7D49D47AF450B940B
    Key-Arg   : None
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket:
    0000 - b2 25 ed c5 c5 44 ff 4f-cf d3 04 b2 21 2a a8 85   .%...D.O....!*..
    0010 - b6 3e 3a 74 f3 d5 c7 6e-9e 0e 81 d0 ba da a8 7c   .>:t...n.......|
    0020 - 8c 1f 88 8a d5 43 79 af-6e b9 f9 8b ca 44 de 98   .....Cy.n....D..
    0030 - 83 bb de d3 7f 11 07 03-a0 d6 5f dd 67 e4 2e 67   .........._.g..g
    0040 - 28 62 31 b8 81 c8 2c dc-14 ed cf b6 8b cb aa 06   (b1...,.........
    0050 - 60 d9 77 2d e4 5c 2f 12-28 44 97 46 2f df 36 de   `.w-.\/.(D.F/.6.
    0060 - 27 e6 bf d8 96 1a 3f cd-09 fb 50 ce 71 03 26 29   '.....?...P.q.&)
    0070 - 02 05 ed 1c 41 ec fe 0a-8c 13 71 76 e2 0a 5d a8   ....A.....qv..].
    0080 - b9 f7 89 2c 3a ef df 37-1b 50 eb ef 4e dd ed 6f   ...,:..7.P..N..o
    0090 - 04 69 28 f6 d5 91 92 7e-74 ff db 26 ff a6 94 a2   .i(....~t..&....
    00a0 - ca b3 ac 7c b2 94 d5 9e-17 ee 60 84 3f b9 1e 7f   ...|......`.?...

    Start Time: 1571230608
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)
---
read:errno=0