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

geosphere.at · 138.22.189.24:443

Verified

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

Subject
CN=geosphere.at
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-23T09:26:59+00:00
Expires
2027-02-07T09:26:58+00:00
Days remaining
118
Serial (hex)
43188244F77AE8ED4796DB5A96A07DC3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:geosphere.at, DNS:www.geosphere.at

SHA-256 fingerprint

C1:0E:9E:83:53:D2:6F:21:1C:5A:BD:AF:47:53:5B:F4:82:19:E3:AC:5E:8E:2F:FB:85:33:96:B7:8F:54:FD:AC
Certificate extensions & PEM
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:geosphere.at, DNS:www.geosphere.at
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 0.4.0.2042.1.6 Policy: 1.3.6.1.4.1.26513.1.1.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-GEANT-TLS-R1.crl
subjectKeyIdentifier
AC:77:F1:D5:F7:E7:20:97:11:F5:66:28:47:FF:3E:0F:CB:D1:C8:71
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 23 09:37:01.243 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EC:E4:AC:6A:E8:1E:30:0F:99:2E:BF: 9F:BC:5F:AA:A5:30:80:14:6C:96:05:F9:BB:F2:BD:11: F0:1B:9C:11:08:02:21:00:F5:34:A6:CA:BA:C3:51:45: 2E:52:B4:C0:E2:B9:57:49:4E:52:92:EE:B9:D5:C7:A4: 8B:EA:F4:D4:43:02:25:44 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 23 09:37:01.282 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D6:30:54:48:D0:7C:1A:7C:81:63:DA: 1E:4F:E6:F2:A0:9E:70:B7:B1:3E:12:3F:A4:E7:02:E9: 0B:23:D6:2F:66:02:20:7D:C7:90:00:69:80:18:0C:14: 7F:D4:A7:A9:FC:C4:A4:06:90:38:9D:EC:32:7A:F8:BE: E0:B6:B9:BF:D4:5E:81 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 23 09:37:01.228 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F2:14:B1:AA:66:88:EA:61:CE:0B:71: A3:6A:6D:83:42:A7:B8:C6:D0:03:D4:94:21:23:44:B6: 98:A5:55:23:5D:02:21:00:95:5F:D4:33:19:94:70:2A: 7F:91:A0:66:25:13:8D:74:91:35:A8:53:B5:DD:54:22: 01:81:7E:09:22:6C:5F:77
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-11T11:46:53+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
4828
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-----
MIIGBTCCA+2gAwIBAgIQFNV782kiKCGaVWf6kWUbIjANBgkqhkiG9w0BAQsFADBs
MQswCQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl
c2VhcmNoIEluc3RpdHV0aW9ucyBDQTEkMCIGA1UEAwwbSEFSSUNBIFRMUyBSU0Eg
Um9vdCBDQSAyMDIxMB4XDTI1MDEwMzExMTUwMFoXDTM5MTIzMTExMTQ1OVowYDEL
MAkGA1UEBhMCR1IxNzA1BgNVBAoMLkhlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNl
YXJjaCBJbnN0aXR1dGlvbnMgQ0ExGDAWBgNVBAMMD0dFQU5UIFRMUyBSU0EgMTCC
AaIwDQYJKoZIhvcNAQEBBQADggGPADCCAYoCggGBAKEEaZSzEzznAPk8IEa17GSG
yJzPTj4cwRY7/vcq2BPT5+IRGxQtaCdgLXIEl2cdPdIkj2eyakFmgMjAtyeju8V8
dRayQCD/bWjJ7thDlowgLljQaXirxnYbT8bzRHAhCZqBakYgi5KWw9dANLyDHGpX
UdY259ab0lWEaFE5Uu6IzQSMJOAy4l/Twym8GUiy0qMDEBFSlm31C9BXpdHKKAlh
vIjMiKoDeTWl5vZaLB2MMRGY1yW2ftPgIP0/MkX1uFITlvHmmMTngxplH1nybEIJ
FiwHg1KiLk1TprcZgeO2gxE5Lz3wTFWrsUlAzrh5xWmscWkjNi/4BpeuiT5+NExF
czboLnXOfjuci/7bsnPi1/aZN/iKNbJRnngFoLaKVMmqCS7Xo34f+BITatryQZFE
u2oDKExQGlxDBCfYMLgLucX/onpLzUSgeQITNLx6i5tGGbUYH+9Dy3GI66L/5tPj
qzlOsydki8ZYGE5SBJeWCZ2IrhUe0WzZ2b6Zhk6JAQIDAQABo4IBLTCCASkwEgYD
VR0TAQH/BAgwBgEB/wIBADAfBgNVHSMEGDAWgBQKSCOmYKSSCjPqk1vFV+olTb0S
7jBNBggrBgEFBQcBAQRBMD8wPQYIKwYBBQUHMAKGMWh0dHA6Ly9jcnQuaGFyaWNh
LmdyL0hBUklDQS1UTFMtUm9vdC0yMDIxLVJTQS5jZXIwEQYDVR0gBAowCDAGBgRV
HSAAMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATBCBgNVHR8EOzA5MDeg
NaAzhjFodHRwOi8vY3JsLmhhcmljYS5nci9IQVJJQ0EtVExTLVJvb3QtMjAyMS1S
U0EuY3JsMB0GA1UdDgQWBBSGAXI/jKlw4jEGUxbOAV9becg8OzAOBgNVHQ8BAf8E
BAMCAYYwDQYJKoZIhvcNAQELBQADggIBABkssjQzYrOo4GMsKegaChP16yNe6Sck
cWBymM455R2rMeuQ3zlxUNOEt+KUfgueOA2urp4j6TlPbs/XxpwuN3I1f09Luk5b
+ZgRXM7obE6ZLTerVQWKoTShyl34R2XlK8pEy7+67Ht4lcJzt+K6K5gEuoPSGQDP
ef+fUfmXrFcgBMcMbtfDb9dubFKNZZxo5nAXiqhFMOIyByag3H+tOTuH8zuId9pH
RDsUpAIHJ9/W2WBfLcKav7IKRlNBRD/sPBy903J9WHPKwl8kQSDA+aa7XCYk7bJt
Eyf+7GM9F5cZ7+YyknXqnv/rtQEkTKZdQo5Us18VFe9qqj94tXbLdk7PejJYNB4O
Zlli44Ld7rtqfFlUych7gIxFOmiyxMQQYrYmUi+74lEZvfoNhuref0CupuKpz6O3
dLv6kO9T10uNdDBoBQTkge3UzHafTIe3R2o3ujXKUGPwyc9m7/FETyKLUCwSU/5O
AVOeBCU8QtkKKjM8AmbpKpe3pHWcyq3R7B3LmIALkMPTydyDfxen65IDqREbVq8N
xjhkJThUz40JqOlN6uqKqeDISj/IoucYwsqW24AlO7ZzNmohQmMi8ep23H4hBSh0
GBTe2XvkuzaNf92syK8l2HzO+13GLCjzYLTPvXTO9UpK8DGyfGZOuamuwbAnbNpE
3RfjV9IaUQGJ
-----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
1054
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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