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

serv-ac.com · 88.208.23.92:443

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=127.0.0.1
Issuer
CN=127.0.0.1
Valid from
2026-09-29T19:41:46+00:00
Expires
2027-09-29T19:41:46+00:00
Days remaining
331
Serial (hex)
AFDB40F04F50C385
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

15:12:64:12:09:BC:D4:68:85:A5:F1:AD:A2:D4:37:EC:E4:B0:26:51:21:2B:A6:EF:89:12:65:5C:07:D5:23:C8
Certificate extensions & PEM
subjectKeyIdentifier
F0:EF:91:15:02:60:83:53:33:ED:E3:97:97:96:2D:D8:D2:96:5B:32
authorityKeyIdentifier
F0:EF:91:15:02:60:83:53:33:ED:E3:97:97:96:2D:D8:D2:96:5B:32
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-02T14:48:59+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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