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

dhbw-stuttgart.de · 141.31.111.240:443

Verified

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

Subject
C=DE ST=Baden-Wuerttemberg O=Duale Hochschule Baden-Wuerttemberg CN=www.dhbw-stuttgart.de
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-22T05:34:33+00:00
Expires
2027-02-06T05:34:32+00:00
Days remaining
92
Serial (hex)
6196858A247DA354299B63B114FE18D0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.dhbw-stuttgart.de, DNS:dhbw-stuttgart.de

SHA-256 fingerprint

07:2F:3A:50:34:29:6B:E1:2E:6F:CD:A7:60:69:FE:E3:4F:F8:9C:DA:D1:83:4B:58:0C:43:98:A9:08:CE:E6:ED
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-R1.cer
subjectAltName
DNS:www.dhbw-stuttgart.de, DNS:dhbw-stuttgart.de
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 0.4.0.2042.1.7 Policy: 1.3.6.1.4.1.26513.1.1.1.2
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-GEANT-TLS-R1.crl
subjectKeyIdentifier
D9:0B:97:21:E7:41:3D:6E:2B:A7:33:72:1D:7B:81:52:5D:B2:CD:B4
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Jul 22 05:44:35.501 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:1C:50:55:41:F2:64:56:B2:E2:42:DB:CD: E9:96:56:FA:8C:60:93:BA:31:6D:13:4B:1B:CD:69:18: 79:C4:7F:8C:02:21:00:FE:9F:1C:86:C5:65:4D:F0:B7: A5:E0:97:37:17:73:9D:F7:0A:6B:81:FC:3D:B1:F2:51: 52:C8:27:CF:60:7C:63 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Jul 22 05:44:35.527 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:19:AF:81:A7:41:7B:6E:D3:0A:37:91:32: 69:FC:6F:35:91:D5:3F:7D:70:87:C8:6A:02:98:06:EC: 5A:C7:BC:99:02:20:0C:51:FE:CC:79:46:73:7E:DA:97: 9B:63:15:8C:D4:B9:07:6B:7C:3B:D8:60:C6:10:F3:DF: 81:E0:BE:0B:8D:61 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 : Jul 22 05:44:35.477 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:62:87:F4:0D:6C:8C:6E:EB:D7:BA:A1:8D: 5F:6B:C9:74:87:78:3F:59:98:69:F2:76:CB:FB:DF:2B: 26:9B:81:72:02:20:1D:E5:95:41:9E:89:D9:62:04:4E: AC:EE:AA:FF:EF:55:93:A1:96:79:A8:B9:FE:4F:7E:5C: 4C:B0:68:14:92:D3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T02:17:43+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Valid from
2025-01-03T11:15:00+00:00
Expires
2039-12-31T11:14:59+00:00
Days remaining
4803
Serial (hex)
14D57BF3692228219A5567FA91651B22
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-RSA.cer
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-RSA.crl
subjectKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Issuer
C=GR L=Athens O=Hellenic Academic and Research Institutions Cert. Authority CN=Hellenic Academic and Research Institutions RootCA 2015
Valid from
2021-09-02T07:41:55+00:00
Expires
2029-08-31T07:41:54+00:00
Days remaining
1029
Serial (hex)
2A6086D4D4DE45C95E4B98FBBF2FBF26
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4A:CD:8D:C6:02:0A:54:5A:85:89:43:A5:53:B5:E0:F3:FC:5B:85:9A:EA:17:46:65:0D:69:CF:12:10:F9:56:D8
Certificate extensions & PEM
basicConstraints
CA:TRUE
authorityKeyIdentifier
71:15:67:C8:C8:C9:BD:75:5D:72:D0:38:18:6A:9D:F3:71:24:54:0B
authorityInfoAccess
CA Issuers - URI:http://repo.harica.gr/certs/HaricaRootCA2015.crt
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HaricaRootCA2015.crl
subjectKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----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

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