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

TLSv1.3

nicns.net · 54.37.94.192:443

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

Certificate verification failed

Subject
CN=sni-support-required-for-valid-ssl
Issuer
CN=sni-support-required-for-valid-ssl
Valid from
2024-04-29T09:39:06+00:00
Expires
2034-04-27T09:39:06+00:00
Days remaining
2769
Serial (hex)
4F2C34F20F935A4AF7ABE6EF67F31C4C1B7ADC8D
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

97:1E:F0:B2:38:80:93:DC:AC:38:37:7E:8B:C2:F4:AF:0D:38:E0:4C:51:8D:FA:1B:B8:73:A9:2B:59:52:E1:11
Certificate extensions & PEM
subjectKeyIdentifier
A3:A5:92:EB:3D:14:C9:B1:C7:3D:49:B2:46:46:FD:24:8A:EB:50:3A
authorityKeyIdentifier
A3:A5:92:EB:3D:14:C9:B1:C7:3D:49:B2:46:46:FD:24:8A:EB:50:3A
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-27T06:07:06+00:00

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

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