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

stts.ir · 5.144.130.89:443

Verified
The certificate expires within 30 days.

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

Subject
CN=*.stts.ir
Issuer
C=PL O=Asseco Data Systems S.A. CN=Certum DV TLS G2 R39 CA
Valid from
2025-10-27T07:08:39+00:00
Expires
2026-10-27T06:35:19+00:00
Days remaining
18
Serial (hex)
6E68D2BFCE3C824FB9331F7FFCC242F6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.stts.ir, DNS:stts.ir

SHA-256 fingerprint

5C:ED:A1:3B:1C:05:35:F4:80:14:4A:34:59:7D:5A:61:0C:0E:53:20:36:26:35:A6:CF:AD:33:2E:C1:9D:A1:EC
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:*.stts.ir, DNS:stts.ir
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Oct 27 07:08:41.286 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:03:06:6C:CB:23:20:A9:E9:7F:E0:F7:77: 51:C8:6A:AA:F4:A4:A1:E5:6B:2E:71:B3:BD:8F:E7:FC: 9D:82:87:54:02:21:00:A5:03:FE:19:1E:F1:A9:88:1D: 57:BC:CB:A5:0C:E1:72:D1:37:AE:D5:87:4C:99:D8:EE: 72:EA:50:2A:7B:D0:9F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11: 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3 Timestamp : Oct 27 07:08:41.203 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EE:1C:38:03:32:9E:EE:41:A5:6A:A9: 02:EC:F1:9C:98:7B:FA:57:44:7C:88:EA:EC:54:78:54: 43:82:FE:20:85:02:21:00:9D:5F:86:BF:3B:96:9D:95: 1F:84:47:1D:9A:38:52:A1:AC:46:CC:81:CD:24:8C:94: 77:BA:75:FD:A4:80:AD:18 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Oct 27 07:08:40.841 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DA:9A:23:69:CD:D5:AB:1F:62:AD:25: 2C:7C:82:67:72:8E:2A:DC:FE:78:4D:64:F9:32:A8:35: 04:57:04:3A:78:02:20:27:C4:A6:36:32:D7:11:2A:42: EF:92:AC:D7:10:7E:56:0F:6D:4A:78:12:7D:9A:07:F4: 8B:17:F8:9A:60:70:46
-----BEGIN CERTIFICATE-----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IgPfMCEGA1UdIAQaMBgwCAYGZ4EMAQIBMAwGCiqEaAGG9ncCZQEwHQYDVR0lBBYw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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-09T06:28:18+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
4622
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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H5o7DtoGiWXvcRKYpGtWt9czdUa1edSk5mTrwZGEXLAkX1ECiAq4GS5vEGjrEQ1u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DnS5YKMldiLMkVW1Noskd4dHEJ2mkJcVzJIJ0Y4johA1lC1JnZMjkB8ZTNIblkgJ
K6PqlhYkeMOkx+XbmUuUgh29T0sPne7/V6PHnbEJIxUs40+iLCF0HrdqZypjvWQq
pSmHRHI3UWVERDeERca0uJ3I+a5ER9vUL9u5ilGG4afyx7QwzitBG+1rU3nRsHyZ
g6osILL/MWc0AbWJMyKzQ9Guj+uwq47h6BC9BsWF34pJeDC8EuN3HNxPlSWSII9l
Omwtipvq0EL1iocJhXdlsG+jIUVs/Sl/Um9JiZV+h/MoytnrPrWMIj+0zz6BdaPP
2sT6wcLzpnwYcE9FWSbQrzNpL283EOUkObjc8AIxICzPHGusF0IqsO+sj9XzvLTh
TjKfFlzx4NR8gbK7m8sXq6cgP4UAtyvDswebFIRQiuhjqOT9G7+56+4zC0RaEZx/
LwoFE+ObVXxX674szQvIc+7WPCooVsUbwZIikzJqZb4gJQ1OQx23CgyyYlsPHIDN
8FpPkganuCwy++7umTkM7+Q=
-----END CERTIFICATE-----

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

View certificate JSON

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