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

TLSv1.2

ns2.coopenetlujan.com.ar · 2803:3680::11:443

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=horus.s6.coopenet.com.ar emailAddress=root@horus.s6.coopenet.com.ar
Issuer
C=-- ST=SomeState L=SomeCity O=SomeOrganization OU=SomeOrganizationalUnit CN=horus.s6.coopenet.com.ar emailAddress=root@horus.s6.coopenet.com.ar
Valid from
2015-05-22T13:31:16+00:00
Expires
2016-05-21T13:31:16+00:00
Days remaining
-3819
Serial (hex)
4005
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

97:56:AC:99:F1:71:FB:4D:BB:D1:DB:E3:39:69:8C:BE:05:39:B9:EF:FE:87:10:46:D4:44:1D:FF:48:99:B8:7B
Certificate extensions & PEM
subjectKeyIdentifier
C6:AB:2F:DE:01:7B:9F:F5:86:8F:37:AC:DF:C7:21:DC:AE:7D:3A:C8
authorityKeyIdentifier
C6:AB:2F:DE:01:7B:9F:F5:86:8F:37:AC:DF:C7:21:DC:AE:7D:3A:C8
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-04T06:54:42+00:00

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

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