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

ns2.schoeneform.de · 97.107.140.187:443

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=internet
Issuer
CN=internet
Valid from
2023-06-05T02:31:03+00:00
Expires
2028-05-09T02:31:03+00:00
Days remaining
582
Serial (hex)
C88FAA485171CBA6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:D4:CE:72:E9:EC:FB:C4:E4:64:C4:E7:63:A3:58:6E:45:CD:77:35:82:AE:CC:A1:2A:66:36:7A:A5:31:74:E6
Certificate extensions & PEM
subjectKeyIdentifier
40:C3:0A:13:8B:E6:19:95:AB:C0:22:62:53:9B:52:0D:79:26:48:A9
authorityKeyIdentifier
40:C3:0A:13:8B:E6:19:95:AB:C0:22:62:53:9B:52:0D:79:26:48:A9
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-04T17:22:04+00:00

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

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