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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

netia.pl · 87.204.19.99:443

Verified

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

Subject
CN=*.netia.pl
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-11-17T00:00:00+00:00
Expires
2026-12-02T23:59:59+00:00
Days remaining
66
Serial (hex)
069B8FB0AA37DD8ADE03A436C5D9E4F5
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.netia.pl, DNS:netia.pl

SHA-256 fingerprint

4C:4D:11:BA:A5:3B:3A:A6:ED:01:1C:9E:DD:28:9E:28:8C:E6:6A:7B:6E:8E:7A:48:2E:23:ED:5E:5D:4D:80:AA
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
B5:6D:D2:A6:D2:B5:09:E1:50:9F:6A:E2:E9:9D:A9:36:32:AA:F6:4B
subjectAltName
DNS:*.netia.pl, DNS:netia.pl
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client 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 : Nov 17 08:36:17.125 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:09:88:C8:CE:82:BD:EA:5D:31:6D:1C:42: A2:7B:93:57:42:87:7B:98:F9:48:47:8B:F0:41:AC:FC: 44:AE:A4:4C:02:21:00:A3:17:BA:35:C4:11:43:66:32: F4:39:D0:5D:1E:10:DC:64:93:16:CA:39:0C:69:E2:28: 14:4A:66:94:64:F3:A7 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 : Nov 17 08:36:17.189 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:08:F5:39:ED:E8:C0:F0:6C:77:25:24:C4: 82:66:9B:49:C6:68:85:85:39:06:74:00:C5:3F:56:78: FA:AC:25:DD:02:21:00:B7:A9:96:26:41:A6:7E:17:0B: 61:B6:DD:9D:81:8E:FE:B8:07:4C:06:A1:1D:7E:52:2C: F6:C6:AA:6C:3E:CF:AD 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 : Nov 17 08:36:17.204 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E6:BD:FE:F5:A4:3F:8F:F6:C3:07:E8: D5:59:5E:16:E5:A4:03:9A:D2:34:16:B4:81:AA:47:71: 54:39:2D:71:E0:02:20:4A:81:9A:15:17:5A:77:3F:E9: 71:CD:01:04:C9:3C:16:D5:2B:11:41:F5:AA:1F:D9:7E: CF:A8:C0:4E:71:10:BE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-27T04:02:42+00:00

Server-presented chain · 1 additional certificate

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-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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