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

zupo.si · 91.237.33.134:443

Verified

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

Subject
CN=*.zupo.si
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-10-20T00:00:00+00:00
Expires
2026-11-20T23:59:59+00:00
Days remaining
54
Serial (hex)
0F2BB7A26F4257858D5797AAD36F4C9A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.zupo.si, DNS:zupo.si

SHA-256 fingerprint

7F:1E:43:B8:02:F7:08:1C:F2:C7:EC:75:D2:25:FA:44:09:89:E2:5E:3D:78:29:0E:E8:E4:9A:EB:E4:11:6E:E4
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
A5:B8:01:A2:4F:E6:9A:64:EF:77:44:46:A4:89:7D:46:C5:0F:C7:C5
subjectAltName
DNS:*.zupo.si, DNS:zupo.si
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Oct 20 07:27:57.415 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:1C:F6:D6:57:16:44:F8:61:5D:B7:FE:9A: F7:92:F7:3E:CB:92:90:28:C4:06:BC:2C:CE:AE:26:27: 64:51:69:A5:02:21:00:A8:FB:8C:F2:59:12:6B:33:3C: FB:0C:89:F3:10:38:D6:35:13:27:FC:56:74:78:BA:B2: A7:07:5F:08:BA:E0:36 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 : Oct 20 07:27:57.449 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AD:16:77:38:0C:95:09:87:89:42:1E: 92:30:17:AB:1A:C5:30:AD:90:2E:29:C8:56:A6:4A:7B: DB:F5:70:15:CE:02:21:00:F7:BF:3A:4B:6C:E0:DB:79: 92:23:AC:5D:46:96:03:06:6A:BA:D8:64:F7:2F:7D:AE: 02:B0:90:20:B4:7F:6E:9E 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 : Oct 20 07:27:57.466 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FF:61:26:F1:0B:3A:95:2D:D6:6E:A9: 39:61:19:7C:DB:01:84:F2:D5:E8:A1:E9:5D:9C:AE:60: 14:5F:93:52:FE:02:21:00:DE:66:14:3D:E6:95:33:3C: B1:9B:04:A7:00:9A:E1:BD:47:77:A8:0D:5D:89:D7:E8: 5D:CF:88:BF:37:F0:9F:C1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-27T04:59:35+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
401
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4128
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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.

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