DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLS

mx2.coopenet.com.ar · 168.0.202.19:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
C=-- ST=SomeState L=SomeCity O=SomeOrganization OU=SomeOrganizationalUnit CN=mail.coopenet.com.ar emailAddress=root@mail.coopenet.com.ar
Issuer
C=-- ST=SomeState L=SomeCity O=SomeOrganization OU=SomeOrganizationalUnit CN=mail.coopenet.com.ar emailAddress=root@mail.coopenet.com.ar
Valid from
2014-08-07T12:21:10+00:00
Expires
2015-08-07T12:21:10+00:00
Days remaining
-4069
Serial (hex)
752A
Signature
RSA-SHA1
Public key
RSA 1024

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

0A:36:72:A7:0E:F0:50:D6:CB:60:4C:15:ED:E9:AE:AA:A2:C8:3E:AC:72:E7:5D:8B:78:A0:74:F2:5B:17:06:67
Certificate extensions & PEM
subjectKeyIdentifier
06:DB:71:AE:1F:C1:0B:5C:E4:9F:AA:8D:B5:E6:19:1A:DB:0D:CD:CA
authorityKeyIdentifier
06:DB:71:AE:1F:C1:0B:5C:E4:9F:AA:8D:B5:E6:19:1A:DB:0D:CD:CA
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: Unavailable · Checked 2026-09-27T05:14:18+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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