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

mail.fiberstate.com · 23.145.120.68:443

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
emailAddress=ssl@srv.fiberstate.com CN=srv.fiberstate.com
Issuer
emailAddress=ssl@srv.fiberstate.com CN=srv.fiberstate.com
Valid from
2026-09-10T12:53:10+00:00
Expires
2027-09-10T12:53:10+00:00
Days remaining
342
Serial (hex)
4AF34EB34487F02B4A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:srv.fiberstate.com

SHA-256 fingerprint

22:B4:91:55:A3:C5:EA:07:D8:D2:75:DD:E5:76:CA:DD:05:7F:03:7F:48:0C:BC:29:17:12:90:D0:A6:57:3E:C7
Certificate extensions & PEM
subjectKeyIdentifier
C2:94:97:0B:5A:E5:6C:31:FB:1D:B4:BA:D8:A0:D2:64:81:1B:F1:DC
basicConstraints
CA:FALSE
authorityKeyIdentifier
keyid:C2:94:97:0B:5A:E5:6C:31:FB:1D:B4:BA:D8:A0:D2:64:81:1B:F1:DC DirName:/emailAddress=ssl@srv.fiberstate.com/CN=srv.fiberstate.com serial:4A:F3:4E:B3:44:87:F0:2B:4A
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectAltName
DNS:srv.fiberstate.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-03T09:35:06+00:00

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

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