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.hamyar.net · 178.173.128.82:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=*.hamyar.net
Issuer
C=PL O=Asseco Data Systems S.A. CN=Certum DV TLS G2 R39 CA
Valid from
2026-08-15T10:54:36+00:00
Expires
2027-03-02T10:54:35+00:00
Days remaining
117
Serial (hex)
3FAB8CA36A9D5D3AE3427774EB519720
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.hamyar.net, DNS:hamyar.net

SHA-256 fingerprint

3C:56:F9:86:2B:2A:1B:EB:E0:91:3B:A3:75:5C:AC:72:66:E7:B6:5F:49:53:3E:64:24:EA:9F:A7:F6:2D:A6:E5
Certificate extensions & PEM
basicConstraints
CA:FALSE
crlDistributionPoints
Full Name: URI:http://certumdvtlsg2r39ca.crl.certum.pl/certumdvtlsg2r39ca.crl
authorityInfoAccess
OCSP - URI:http://certumdvtlsg2r39ca.ocsp-certum.com CA Issuers - URI:http://certumdvtlsg2r39ca.repository.certum.pl/certumdvtlsg2r39ca.cer
authorityKeyIdentifier
33:A8:77:B7:01:38:6F:5F:1F:24:24:A2:1E:6C:14:E3:6E:22:03:DF
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.2.616.1.113527.2.101.1
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
keyUsage
Digital Signature, Key Encipherment
subjectAltName
DNS:*.hamyar.net, DNS:hamyar.net
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Aug 15 10:54:37.224 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CD:2E:18:89:FD:F4:05:87:7E:F3:06: 21:19:9E:A9:E2:A6:6A:13:16:AB:8C:E9:EE:12:AE:B9: 80:D5:E4:23:57:02:20:6B:06:C8:A2:E7:15:1F:69:0A: 6D:F2:A4:52:E8:5F:FD:ED:B7:37:7F:78:E9:24:08:04: 0A:A0:E8:39:F0:F1:2D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Aug 15 10:54:37.281 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:78:49:E1:4D:90:36:9D:E9:B8:54:B5:41: A5:1D:6A:00:FC:D0:8F:CF:A3:A8:15:1D:E2:A3:E9:97: 86:B7:14:3C:02:20:3B:F6:85:75:D5:D0:0C:61:AE:2B: 20:BA:AC:94:7C:81:6B:74:D6:38:9D:91:3B:69:CF:77: B1:A7:73:A4:D2:87 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Aug 15 10:54:37.424 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:3D:88:AE:AE:F4:3A:FA:6A:24:28:7A:8B: 0F:25:F8:1E:4D:1B:42:04:46:FF:18:EC:DF:34:BD:DB: 69:F8:47:A9:02:21:00:A9:74:0E:70:81:CB:0F:40:B8: BA:D1:70:69:A0:3A:FF:4D:48:B9:DF:6A:3A:21:84:D9: 8F:73:06:04:6C:16:2D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-05T03:24:32+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=PL O=Asseco Data Systems S.A. CN=Certum DV TLS G2 R39 CA
Issuer
C=PL O=Asseco Data Systems S.A. OU=Certum Certification Authority CN=Certum Trusted Root CA
Valid from
2024-06-18T07:41:22+00:00
Expires
2039-06-05T07:41:22+00:00
Days remaining
4595
Serial (hex)
A82DD9E5DCAFDF13205E70043E6B95A8
Signature
RSA-SHA512
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

83:C0:A5:A7:68:44:C8:40:DF:AF:82:0F:FD:02:AD:F6:57:3A:26:82:3E:F6:AF:75:8A:33:84:A0:AC:04:40:83
Certificate extensions & PEM
authorityInfoAccess
CA Issuers - URI:http://subca.repository.certum.pl/ctrca.cer OCSP - URI:http://subca.ocsp-certum.com
authorityKeyIdentifier
8C:FB:1C:75:BC:02:D3:9F:4E:2E:48:D9:F9:60:54:AA:C4:B3:4F:FA
basicConstraints
CA:TRUE, pathlen:0
crlDistributionPoints
Full Name: URI:http://subca.crl.certum.pl/ctrca.crl
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
keyUsage
Certificate Sign, CRL Sign
certificatePolicies
Policy: X509v3 Any Policy
subjectKeyIdentifier
33:A8:77:B7:01:38:6F:5F:1F:24:24:A2:1E:6C:14:E3:6E:22:03:DF
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

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

View certificate JSON

Registration / WHOIS →DNS records →