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

TLSv1.2

upc.sk · 213.46.237.24:443

Verified

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

Subject
CN=upc.sk
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Valid from
2026-05-28T13:25:38+00:00
Expires
2026-12-13T13:25:38+00:00
Days remaining
71
Serial (hex)
7B7B38A1A512B7DC705E2AB2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:upc.sk, DNS:upcmail.upc.sk, DNS:tv-program.upc.sk, DNS:preprod.www.upc.sk, DNS:preprod.business.upc.sk, DNS:preprod.biznis.upc.sk, DNS:business.upc.sk, DNS:biznis.upc.sk, DNS:origin.www.upc.sk, DNS:origin.biznis.upc.sk, DNS:origin.business.upc.sk, DNS:upcmail-sharing.upc.sk, DNS:www.upc.sk

SHA-256 fingerprint

D7:7C:CB:52:E6:31:F9:2F:79:79:5F:4C:7D:B7:9C:C0:2C:CF:9B:CB:3C:73:D9:5A:CD:06:20:EC:EF:37:C1:52
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr3dvtlsca2020.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr3dvtlsca2020
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.10 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr3dvtlsca2020.crl
subjectAltName
DNS:upc.sk, DNS:upcmail.upc.sk, DNS:tv-program.upc.sk, DNS:preprod.www.upc.sk, DNS:preprod.business.upc.sk, DNS:preprod.biznis.upc.sk, DNS:business.upc.sk, DNS:biznis.upc.sk, DNS:origin.www.upc.sk, DNS:origin.biznis.upc.sk, DNS:origin.business.upc.sk, DNS:upcmail-sharing.upc.sk, DNS:www.upc.sk
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
subjectKeyIdentifier
28:E5:45:E6:AD:F2:A7:FB:CE:99:B8:F2:12:87:0E:CD:3B:01:C2:1E
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : May 28 13:25:43.400 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:02:48:42:A1:A4:1E:49:92:D0:7E:72:04: 20:1B:35:32:B4:F3:B1:9C:DC:22:E4:BB:06:1D:12:F5: 15:0A:22:C6:02:21:00:EF:9B:02:D0:FC:77:15:8E:65: F9:7E:D2:EB:63:31:19:33:07:6F:C3:4A:80:B1:9C:E3: 0B:1E:62:14:57:4F:A8 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 : May 28 13:25:43.373 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D3:DC:4D:30:5F:C5:54:12:33:E4:79: 3E:A0:15:5A:90:CD:D5:D2:85:99:80:37:F8:0F:DC:1A: D6:BB:46:7A:1C:02:20:70:75:B3:12:02:29:01:DC:7C: 98:54:57:3A:3D:48:A2:8D:31:C4:11:E7:FF:8D:59:91: 08:09:9B:F8:4D:45:1F 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 : May 28 13:25:43.381 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:E5:65:3B:6E:6F:B3:61:2D:27:23:CC: E5:61:EA:9A:B2:C0:67:9D:41:F8:14:6E:D1:6E:63:0B: 62:6E:37:CA:DB:02:21:00:AC:EF:F8:E8:9B:50:8B:EC: D3:09:89:E6:35:C8:B2:ED:0F:DF:4F:3D:21:FE:66:A6: 8C:87:B9:59:85:95:2B:33
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: DHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-03T07:56:57+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2020-07-28T00:00:00+00:00
Expires
2029-03-18T00:00:00+00:00
Days remaining
896
Serial (hex)
77BD0E0742D5D9E9D049D774D02A6F9A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:25:38:43:95:09:C4:11:C4:37:D3:C5:67:56:3E:13:78:67:12:81:FC:4A:14:64:AD:D0:31:87:08:43:67:6E
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r3.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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

Registration / WHOIS →DNS records →