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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

modares.ac.ir · 185.143.233.131:443

Verified

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

Subject
CN=*.modares.ac.ir
Issuer
C=PL O=Asseco Data Systems S.A. CN=Certum DV TLS G2 R39 CA
Valid from
2026-08-02T08:35:28+00:00
Expires
2027-02-17T08:35:27+00:00
Days remaining
134
Serial (hex)
382D13C873CF4829465F7A4E479DC9F3
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.modares.ac.ir, DNS:modares.ac.ir

SHA-256 fingerprint

93:E1:58:40:53:46:38:5D:4D:7D:07:E3:56:B7:57:F8:D3:82:B6:BB:6D:CB:E1:3A:15:B4:37:C3:91:72:38:0F
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:*.modares.ac.ir, DNS:modares.ac.ir
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 2 08:35:29.195 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CF:0E:78:41:5D:AD:E9:32:1B:1E:2E: 62:41:00:AA:C4:F9:E5:48:D0:00:34:39:4F:E6:A0:83: A3:73:9E:34:1F:02:20:5B:A0:6A:D7:9A:59:7B:07:43: 67:4C:C0:88:34:12:03:C9:5B:8A:87:22:12:7B:77:85: 6E:E2:F3:E7:54:FA:11 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 2 08:35:29.488 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AC:AF:33:5D:BB:60:EC:FC:FF:DA:E4: 70:72:AE:04:0C:00:D3:4B:CA:F6:79:7D:21:A6:64:AB: B0:33:23:B9:3D:02:21:00:E0:78:9F:88:BB:0A:F2:F1: C2:79:0F:6C:DD:97:C3:70:49:95:A6:9B:7C:27:5A:0B: BF:02:AC:83:BB:66:B3:23 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 2 08:35:29.253 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:12:B3:CA:1C:E4:4B:68:A0:CB:0A:BA:9C: 8D:55:46:52:2F:84:C5:EB:67:A2:D3:A3:55:0D:89:15: 82:FD:99:51:02:20:66:D2:11:8F:A9:32:67:E7:AE:62: 04:7F:CD:E8:46:60:C3:D7:4E:D0:71:A6:0C:09:D3:04: 10:25:20:2F:C7:FA
-----BEGIN CERTIFICATE-----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2ls96fjetCpda1zz4ndVAgMBAAGjggMgMIIDHDAMBgNVHRMBAf8EAjAAME8GA1Ud
HwRIMEYwRKBCoECGPmh0dHA6Ly9jZXJ0dW1kdnRsc2cycjM5Y2EuY3JsLmNlcnR1
bS5wbC9jZXJ0dW1kdnRsc2cycjM5Y2EuY3JsMIGaBggrBgEFBQcBAQSBjTCBijA1
BggrBgEFBQcwAYYpaHR0cDovL2NlcnR1bWR2dGxzZzJyMzljYS5vY3NwLWNlcnR1
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b3NpdG9yeS5jZXJ0dW0ucGwvY2VydHVtZHZ0bHNnMnIzOWNhLmNlcjAfBgNVHSME
GDAWgBQzqHe3AThvXx8kJKIebBTjbiID3zAhBgNVHSAEGjAYMAgGBmeBDAECATAM
BgoqhGgBhvZ3AmUBMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAOBgNV
HQ8BAf8EBAMCBaAwKQYDVR0RBCIwIIIPKi5tb2RhcmVzLmFjLmlygg1tb2RhcmVz
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ClqhuzWXDgDuERaJaCocRNe1ZgAAAZ/BnSUrAAAEAwBHMEUCIQDPDnhBXa3pMhse
LmJBAKrE+eVI0AA0OU/moIOjc540HwIgW6Bq15pZewdDZ0zAiDQSA8lbiociEnt3
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nSZQAAAEAwBIMEYCIQCsrzNdu2Ds/P/a5HByrgQMANNLyvZ5fSGmZKuwMyO5PQIh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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-06T01:09:45+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
4625
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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R/vUhM+FNywNUlvzYjcM6zt3Ysf9M1hK5PjUEKzsPf5BrIp0fs1zhlVC+cgBN2+J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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

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