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

smtp.cdnet.id · 103.183.58.173:443

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=dns1 emailAddress=root@dns1
Issuer
C=-- ST=SomeState L=SomeCity O=SomeOrganization OU=SomeOrganizationalUnit CN=dns1 emailAddress=root@dns1
Valid from
2020-09-29T17:10:57+00:00
Expires
2021-09-29T17:10:57+00:00
Days remaining
-1862
Serial (hex)
78D6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EE:FE:8C:85:D8:1C:CF:CC:7E:BF:15:CC:E8:53:4A:87:6D:BF:FB:AF:35:E0:0A:89:99:0E:A0:CE:2E:4B:92:A0
Certificate extensions & PEM
basicConstraints
CA:FALSE
keyUsage
Digital Signature, Non Repudiation, Key Encipherment
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-04T05:51:45+00:00

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

View certificate JSON

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