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

nsb.adnettelecom.ro · 84.239.11.212:443

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
The certificate has expired.

Certificate verification failed

Subject
CN=ciidavidadriana.ro
Issuer
CN=ciidavidadriana.ro
Valid from
2021-07-06T11:35:38+00:00
Expires
2022-07-06T11:35:38+00:00
Days remaining
-1541
Serial (hex)
787DF66C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ciidavidadriana.ro, DNS:mail.ciidavidadriana.ro, DNS:www.ciidavidadriana.ro

SHA-256 fingerprint

47:42:13:8D:25:E4:D1:CF:B9:C1:D5:62:CE:51:08:69:E4:09:54:B8:92:A8:E1:3C:D1:E4:73:0A:29:E0:D3:44
Certificate extensions & PEM
subjectKeyIdentifier
1C:56:78:7C:BF:B1:A9:B8:28:2A:32:2D:97:BF:53:15:6E:07:38:B1
basicConstraints
CA:FALSE
authorityKeyIdentifier
keyid:1C:56:78:7C:BF:B1:A9:B8:28:2A:32:2D:97:BF:53:15:6E:07:38:B1 DirName:/CN=ciidavidadriana.ro serial:78:7D:F6:6C
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectAltName
DNS:ciidavidadriana.ro, DNS:mail.ciidavidadriana.ro, DNS:www.ciidavidadriana.ro
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T19:33:35+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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