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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

mail2.luksus.net.pl · 195.238.166.98:443

Verified

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

Subject
CN=*.luksus.net.pl
Issuer
C=PL O=nazwa.pl Sp. z o.o. CN=nazwaSSL DV TLS G2 E29 CA
Valid from
2026-07-07T12:14:36+00:00
Expires
2027-01-06T00:00:00+00:00
Days remaining
75
Serial (hex)
58B2D6D17C86B7DEC63B3C5B840ADF17
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

DNS:*.luksus.net.pl, DNS:luksus.net.pl

SHA-256 fingerprint

B8:2E:2F:4C:4C:F2:6F:6F:0E:58:63:62:91:36:9D:7F:B3:BF:33:32:C5:94:B4:33:EA:AB:75:DB:90:60:D5:31
Certificate extensions & PEM
basicConstraints
CA:FALSE
crlDistributionPoints
Full Name: URI:http://nazwassldvtlsg2e29ca.crl.certum.pl/nazwassldvtlsg2e29ca.crl
authorityInfoAccess
OCSP - URI:http://nazwassldvtlsg2e29ca.ocsp-certum.com CA Issuers - URI:http://nazwassldvtlsg2e29ca.repository.certum.pl/nazwassldvtlsg2e29ca.cer
authorityKeyIdentifier
A0:EA:D4:0B:0F:49:FA:43:10:E4:5B:BF:C0:23:FF:5C:14:CE:A4:2C
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.2.616.1.113527.2.101.1
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
keyUsage
Digital Signature
subjectAltName
DNS:*.luksus.net.pl, DNS:luksus.net.pl
ct_precert_scts
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 7 12:14:37.311 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:08:C2:75:CB:76:EA:CB:26:53:9F:8D:7E: D2:24:7F:F7:3A:11:FC:74:39:B1:7D:D8:7B:3A:E5:FB: 97:20:71:83:02:20:7E:05:3C:9F:87:54:66:FD:E3:E6: 1F:EF:5C:21:AB:2F:B8:35:32:0B:DE:3B:66:D6:D8:C5: 04:2A:31:16:95:29 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Jul 7 12:14:37.361 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:43:02:1F:25:41:60:BA:E6:22:FC:57:31:72:EF:85: 4B:E4:95:3F:67:42:5F:4D:0B:C0:AF:52:57:7A:AB:25: 8E:F5:EB:02:20:2A:F5:99:E0:AC:3A:01:4F:3D:D0:73: 87:15:5F:C2:88:2F:86:39:41:62:A0:E1:99:70:7E:2D: 0C:54:72:C3:1A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jul 7 12:14:37.520 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:13:9F:7E:D4:D4:67:7E:1D:23:42:F5:F5: 66:FF:2D:76:3A:0F:4A:71:9D:31:38:C2:24:CB:25:90: 3A:EC:EB:08:02:20:0F:D1:6D:8E:6B:AB:6C:BD:F4:DE: 06:B6:47:55:1F:89:8E:D9:16:6D:1E:24:60:C7:27:69: 1A:ED:E1:F8:2F:29
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-22T08:20:39+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=PL O=Asseco Data Systems S.A. OU=Certum Certification Authority CN=Certum EC-384 CA
Issuer
C=PL O=Asseco Data Systems S.A. OU=Certum Certification Authority CN=Certum EC-384 CA
Valid from
2018-03-26T07:24:54+00:00
Expires
2043-03-26T07:24:54+00:00
Days remaining
5998
Serial (hex)
788F275C81125220A504D02DDDBA73F4
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6B:32:80:85:62:53:18:AA:50:D1:73:C9:8D:8B:DA:09:D5:7E:27:41:3D:11:4C:F7:87:A0:F5:D0:6C:03:0C:F6
Certificate extensions & PEM
basicConstraints
CA:TRUE
subjectKeyIdentifier
8D:06:66:74:24:76:3A:F3:89:F7:BC:D6:BD:47:7D:2F:BC:10:5F:4B
keyUsage
Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=PL O=nazwa.pl Sp. z o.o. CN=nazwaSSL DV TLS G2 E29 CA
Issuer
C=PL O=Asseco Data Systems S.A. OU=Certum Certification Authority CN=Certum EC-384 CA
Valid from
2024-08-20T09:37:15+00:00
Expires
2029-08-14T09:37:15+00:00
Days remaining
1027
Serial (hex)
B8FF01A8B6586AF72FE313D2D2B45F14
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

7F:02:E3:51:F8:9B:11:97:41:B0:1D:13:71:CA:1B:9C:14:ED:8B:34:D6:40:BA:44:EF:C3:AB:B9:FE:BB:E7:C8
Certificate extensions & PEM
authorityInfoAccess
CA Issuers - URI:http://subca.repository.certum.pl/cec384ca.cer OCSP - URI:http://subca.ocsp-certum.com
authorityKeyIdentifier
8D:06:66:74:24:76:3A:F3:89:F7:BC:D6:BD:47:7D:2F:BC:10:5F:4B
basicConstraints
CA:TRUE, pathlen:0
crlDistributionPoints
Full Name: URI:http://subca.crl.certum.pl/cec384ca.crl
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
keyUsage
Certificate Sign, CRL Sign
certificatePolicies
Policy: X509v3 Any Policy
subjectKeyIdentifier
A0:EA:D4:0B:0F:49:FA:43:10:E4:5B:BF:C0:23:FF:5C:14:CE:A4:2C
-----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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