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

umb.sk · 172.66.170.49:443

Verified

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

Subject
C=SK L=Banská Bystrica O=Univerzita Mateja Bela v Banskej Bystrici CN=*.umb.sk
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2025-12-09T10:05:39+00:00
Expires
2026-12-09T10:05:39+00:00
Days remaining
71
Serial (hex)
4424700383CB986539DBF6501FAFC975
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.umb.sk, DNS:umb.sk, DNS:*.grid.umb.sk, DNS:grid.umb.sk, DNS:*.alumni.umb.sk, DNS:alumni.umb.sk, DNS:*.zosuladovanieef.umb.sk, DNS:zosuladovanieef.umb.sk, DNS:*.ff.umb.sk, DNS:ff.umb.sk, DNS:*.ef.umb.sk, DNS:ef.umb.sk, DNS:*.kniznica.umb.sk, DNS:kniznica.umb.sk, DNS:*.ais2-beta.umb.sk, DNS:ais2-beta.umb.sk, DNS:*.ais2.umb.sk, DNS:ais2.umb.sk, DNS:*.lidervedukacii.umb.sk, DNS:lidervedukacii.umb.sk, DNS:*.informatika.umb.sk, DNS:informatika.umb.sk, DNS:*.sportklub.umb.sk, DNS:sportklub.umb.sk, DNS:*.mc.umb.sk, DNS:mc.umb.sk, DNS:*.politickevedy.fpvmv.umb.sk, DNS:politickevedy.fpvmv.umb.sk, DNS:*.ucmp.umb.sk, DNS:ucmp.umb.sk, DNS:*.dofe.umb.sk, DNS:dofe.umb.sk, DNS:*.cib.umb.sk, DNS:cib.umb.sk, DNS:*.ekonomikaaspolocnost.umb.sk, DNS:ekonomikaaspolocnost.umb.sk, DNS:*.argumentacia.umb.sk, DNS:argumentacia.umb.sk, DNS:*.fpv.umb.sk, DNS:fpv.umb.sk, DNS:*.ftvsz.umb.sk, DNS:ftvsz.umb.sk, DNS:*.uakom.umb.sk, DNS:uakom.umb.sk, DNS:*.publikacie.fpvmv.umb.sk, DNS:publikacie.fpvmv.umb.sk, DNS:*.motus.umb.sk, DNS:motus.umb.sk, DNS:*.library.umb.sk, DNS:library.umb.sk, DNS:*.servicelearning.umb.sk, DNS:servicelearning.umb.sk, DNS:*.ahn.umb.sk, DNS:ahn.umb.sk, DNS:*.pdf.umb.sk, DNS:pdf.umb.sk, DNS:*.jedalen.umb.sk, DNS:jedalen.umb.sk, DNS:*.posohu.umb.sk, DNS:posohu.umb.sk, DNS:*.fotobanka.umb.sk, DNS:fotobanka.umb.sk, DNS:*.studujinformatiku.umb.sk, DNS:studujinformatiku.umb.sk, DNS:*.kvalita.umb.sk, DNS:kvalita.umb.sk, DNS:*.info.umb.sk, DNS:info.umb.sk, DNS:*.hpcc.umb.sk, DNS:hpcc.umb.sk, DNS:*.fpvmv.umb.sk, DNS:fpvmv.umb.sk, DNS:*.publikacie.umb.sk, DNS:publikacie.umb.sk, DNS:*.osticket.umb.sk, DNS:osticket.umb.sk, DNS:*.prf.umb.sk, DNS:prf.umb.sk, DNS:*.student.umb.sk, DNS:student.umb.sk, DNS:*.rozvojef.umb.sk, DNS:rozvojef.umb.sk, DNS:*.labs.fpv.umb.sk, DNS:labs.fpv.umb.sk, DNS:*.mysme.umb.sk, DNS:mysme.umb.sk, DNS:*.preukazy.umb.sk, DNS:preukazy.umb.sk, DNS:*.dev.uakom.umb.sk, DNS:dev.uakom.umb.sk, DNS:*.fhv.umb.sk, DNS:fhv.umb.sk, DNS:*.ubytovanie.umb.sk, DNS:ubytovanie.umb.sk, DNS:*.web-student.umb.sk, DNS:web-student.umb.sk, DNS:*.web9.umb.sk, DNS:web9.umb.sk, DNS:*.projektycpp.umb.sk, DNS:projektycpp.umb.sk

SHA-256 fingerprint

6B:51:7A:86:CA:66:87:98:24:65:4C:2F:BC:9B:1E:22:50:71:67:8B:1D:BA:F8:21:54:1A:CC:65:06:CF:A7:7B
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 OCSP - URI:http://ocsp-tls.harica.gr
subjectAltName
DNS:*.umb.sk, DNS:umb.sk, DNS:*.grid.umb.sk, DNS:grid.umb.sk, DNS:*.alumni.umb.sk, DNS:alumni.umb.sk, DNS:*.zosuladovanieef.umb.sk, DNS:zosuladovanieef.umb.sk, DNS:*.ff.umb.sk, DNS:ff.umb.sk, DNS:*.ef.umb.sk, DNS:ef.umb.sk, DNS:*.kniznica.umb.sk, DNS:kniznica.umb.sk, DNS:*.ais2-beta.umb.sk, DNS:ais2-beta.umb.sk, DNS:*.ais2.umb.sk, DNS:ais2.umb.sk, DNS:*.lidervedukacii.umb.sk, DNS:lidervedukacii.umb.sk, DNS:*.informatika.umb.sk, DNS:informatika.umb.sk, DNS:*.sportklub.umb.sk, DNS:sportklub.umb.sk, DNS:*.mc.umb.sk, DNS:mc.umb.sk, DNS:*.politickevedy.fpvmv.umb.sk, DNS:politickevedy.fpvmv.umb.sk, DNS:*.ucmp.umb.sk, DNS:ucmp.umb.sk, DNS:*.dofe.umb.sk, DNS:dofe.umb.sk, DNS:*.cib.umb.sk, DNS:cib.umb.sk, DNS:*.ekonomikaaspolocnost.umb.sk, DNS:ekonomikaaspolocnost.umb.sk, DNS:*.argumentacia.umb.sk, DNS:argumentacia.umb.sk, DNS:*.fpv.umb.sk, DNS:fpv.umb.sk, DNS:*.ftvsz.umb.sk, DNS:ftvsz.umb.sk, DNS:*.uakom.umb.sk, DNS:uakom.umb.sk, DNS:*.publikacie.fpvmv.umb.sk, DNS:publikacie.fpvmv.umb.sk, DNS:*.motus.umb.sk, DNS:motus.umb.sk, DNS:*.library.umb.sk, DNS:library.umb.sk, DNS:*.servicelearning.umb.sk, DNS:servicelearning.umb.sk, DNS:*.ahn.umb.sk, DNS:ahn.umb.sk, DNS:*.pdf.umb.sk, DNS:pdf.umb.sk, DNS:*.jedalen.umb.sk, DNS:jedalen.umb.sk, DNS:*.posohu.umb.sk, DNS:posohu.umb.sk, DNS:*.fotobanka.umb.sk, DNS:fotobanka.umb.sk, DNS:*.studujinformatiku.umb.sk, DNS:studujinformatiku.umb.sk, DNS:*.kvalita.umb.sk, DNS:kvalita.umb.sk, DNS:*.info.umb.sk, DNS:info.umb.sk, DNS:*.hpcc.umb.sk, DNS:hpcc.umb.sk, DNS:*.fpvmv.umb.sk, DNS:fpvmv.umb.sk, DNS:*.publikacie.umb.sk, DNS:publikacie.umb.sk, DNS:*.osticket.umb.sk, DNS:osticket.umb.sk, DNS:*.prf.umb.sk, DNS:prf.umb.sk, DNS:*.student.umb.sk, DNS:student.umb.sk, DNS:*.rozvojef.umb.sk, DNS:rozvojef.umb.sk, DNS:*.labs.fpv.umb.sk, DNS:labs.fpv.umb.sk, DNS:*.mysme.umb.sk, DNS:mysme.umb.sk, DNS:*.preukazy.umb.sk, DNS:preukazy.umb.sk, DNS:*.dev.uakom.umb.sk, DNS:dev.uakom.umb.sk, DNS:*.fhv.umb.sk, DNS:fhv.umb.sk, DNS:*.ubytovanie.umb.sk, DNS:ubytovanie.umb.sk, DNS:*.web-student.umb.sk, DNS:web-student.umb.sk, DNS:*.web9.umb.sk, DNS:web9.umb.sk, DNS:*.projektycpp.umb.sk, DNS:projektycpp.umb.sk
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
A1:95:F9:98:48:A6:0E:4F:C2:50:BB:40:60:48:E5:AD:B7:81:39:79
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Dec 9 10:15:41.672 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E7:2A:64:BF:8C:2C:91:D4:CF:B1:FD: 54:24:38:19:E1:B1:17:94:22:E0:CD:BB:B9:3E:2E:31: 88:FC:CB:6F:23:02:20:27:20:A6:04:05:87:1D:BF:C8: F1:B4:2D:A0:08:A1:FC:75:72:02:A4:73:10:57:1C:36: 8F:CB:35:64:D8:29:99 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Dec 9 10:15:41.641 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4B:AE:41:1C:0A:02:AD:16:E4:FF:FC:DB: DE:00:00:0F:87:C6:A7:73:34:77:CD:E8:B9:86:A5:5F: 18:66:DB:C2:02:21:00:8A:50:0B:5F:FB:DE:C1:48:8C: 3F:0D:B1:E3:7C:89:C4:2A:16:FD:8A:FB:14:04:0E:3C: E7:FC:AC:1D:DF:CA:EC Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Dec 9 10:15:41.593 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:44:CE:A0:8B:F1:CD:A9:31:44:D0:6C:B4: EF:33:AE:53:2E:72:E1:53:53:04:C3:43:93:9D:F4:32: 6F:61:42:9D:02:20:68:84:6B:0B:6F:D0:3F:8D:CB:B9: 64:C7:44:39:61:16:C9:C4:14:6A:A1:4F:B7:B3:3C:AD: 3D:18:12:B4:6C:C9
-----BEGIN CERTIFICATE-----
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AYEAk0zaWs0hPiU7FiZf1TkYHXnoGZPmEcWoJESSOA1bHcVS/XH7o3qQq10dVqG6
AeCwvSyD7+mzD9GLecMIhvJwoGdZx1b4nmgkh5YQmH6QoUEQhjmsyOjwPuHt1rU+
lorwkTUq8HTibPNZxQX4uHLwQ6J0uhhdOjTNWEHkFXw+eDCII/LPeRnUV8zkLXW3
bt8BhmQBVzw/hXg8UZyMKPyGkPfCs1q4zmwSb/WBynxABHoV/BpOLItv0RJZTMBE
ORx/yhzyOFQ7VWUD0a/mEdQ9NfxwiMop5eHDQbJ+5xZOE30Eohp+JaEZFpIWMJHd
hr6p5zhnW6WV+xa42Q67emnUlm/qlU4fI4L4Hc9owp6+CRZeXr9MV6O0LtO5dvJR
p/LDHSwBzHT216ludTP/vefpxBW5tnMFzQjp8y4InBrmfJBlczOdoVdwDWABmYPT
4BPM7Z1Ium9Mji82VSVDDRkRSeArNqz2S5aKlFMkpEU6Oo0r9bvZZLvOLHDfYImt
ddwD
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-29T02:32:29+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
4841
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
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MAkGA1UEBhMCR1IxNzA1BgNVBAoMLkhlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNl
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czboLnXOfjuci/7bsnPi1/aZN/iKNbJRnngFoLaKVMmqCS7Xo34f+BITatryQZFE
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BAMCAYYwDQYJKoZIhvcNAQELBQADggIBABkssjQzYrOo4GMsKegaChP16yNe6Sck
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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
1067
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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