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

ns4.datafon.net.tr · 91.102.161.13:443

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
C=US ST=Someprovince L=Sometown O=none OU=none CN=localhost emailAddress=webmaster@localhost
Issuer
C=US ST=Someprovince L=Sometown O=none OU=none CN=localhost emailAddress=webmaster@localhost
Valid from
2017-09-19T22:09:29+00:00
Expires
2045-02-03T22:09:29+00:00
Days remaining
6703
Serial (hex)
EB44C9A920EB36AA
Signature
RSA-SHA1
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D6:45:8D:BA:51:05:A4:F2:97:BD:35:F8:DB:70:FD:EF:2A:09:F2:24:FE:2E:3C:65:C0:CE:56:12:B0:27:EC:72
Certificate extensions & PEM
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-28T16:33:55+00:00

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

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