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

polkomtel.com.pl · 212.2.120.194:443

Verified

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

Subject
jurisdictionC=PL businessCategory=Private Organization serialNumber=0000419430 C=PL L=Warszawa O=POLKOMTEL SP Z O O CN=polkomtel.com.pl
Issuer
C=US O=DigiCert Inc CN=Thawte EV RSA CA G2
Valid from
2026-09-16T00:00:00+00:00
Expires
2027-04-02T23:59:59+00:00
Days remaining
180
Serial (hex)
0162BC5F11AE1F04F362CFB55FCFBD24
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:polkomtel.com.pl, DNS:www.polkomtel.com.pl, DNS:www.biuroprasowe.plus.pl, DNS:www.news.plus.pl, DNS:pki.polkomtel.com.pl, DNS:biuroprasowe.plus.pl, DNS:news.plus.pl

SHA-256 fingerprint

24:26:B7:FA:79:80:58:3B:10:AC:43:7D:AD:76:A9:15:4D:28:67:C0:CD:82:67:36:93:99:D4:29:09:87:D2:9E
Certificate extensions & PEM
authorityKeyIdentifier
6C:2E:E4:61:B4:C3:B9:BD:F0:CA:AD:A6:C1:68:7A:B8:D4:CC:1D:A0
subjectKeyIdentifier
0F:AB:40:A3:7F:F0:D0:84:F1:95:E1:F0:AD:F7:F9:8A:B0:F6:AF:92
subjectAltName
DNS:polkomtel.com.pl, DNS:www.polkomtel.com.pl, DNS:www.biuroprasowe.plus.pl, DNS:www.news.plus.pl, DNS:pki.polkomtel.com.pl, DNS:biuroprasowe.plus.pl, DNS:news.plus.pl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 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://crl3.digicert.com/ThawteEVRSACAG2.crl Full Name: URI:http://crl4.digicert.com/ThawteEVRSACAG2.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/ThawteEVRSACAG2.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 16 12:35:24.097 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DD:F2:2B:25:FC:86:59:C4:A4:F4:7C: BF:54:D5:7D:0F:A1:78:91:21:A4:FA:B8:11:64:AC:B9: 7E:DC:6E:06:24:02:20:27:52:DD:DC:EF:6C:48:F1:66: 69:45:E8:BF:E4:F0:D4:47:DD:7E:5A:49:A1:0A:3C:4A: F1:25:33:25:15:6A:E1 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 : Sep 16 12:35:24.114 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A9:09:53:22:E4:38:27:41:AC:BA:0A: 34:13:02:4E:15:90:97:B8:16:CC:60:23:43:17:82:20: 1A:DC:BF:C6:18:02:21:00:EB:E6:9F:B7:A5:D7:1A:C3: F4:C0:B2:8D:25:75:D2:4B:36:FB:8B:81:59:FA:19:FB: 7C:C0:66:92:38:E9:1C:11 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 : Sep 16 12:35:24.143 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B4:C2:3F:E1:64:54:0C:20:3E:1E:9C: 38:3C:BF:60:92:2A:16:8C:04:E0:0F:A1:00:CC:46:78: DA:CF:B2:E3:FB:02:20:6A:88:79:91:A1:75:33:B2:22: FE:C6:00:9A:EC:19:3F:DB:B4:0C:DB:C6:A5:B5:B5:F4: 90:BB:8C:D2:E6:E2:F9
-----BEGIN CERTIFICATE-----
MIIHQjCCBiqgAwIBAgIQAWK8XxGuHwTzYs+1X8+9JDANBgkqhkiG9w0BAQsFADBC
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRwwGgYDVQQDExNU
aGF3dGUgRVYgUlNBIENBIEcyMB4XDTI2MDkxNjAwMDAwMFoXDTI3MDQwMjIzNTk1
OVowgaExEzARBgsrBgEEAYI3PAIBAxMCUEwxHTAbBgNVBA8MFFByaXZhdGUgT3Jn
YW5pemF0aW9uMRMwEQYDVQQFEwowMDAwNDE5NDMwMQswCQYDVQQGEwJQTDERMA8G
A1UEBxMIV2Fyc3phd2ExGzAZBgNVBAoTElBPTEtPTVRFTCBTUCBaIE8gTzEZMBcG
A1UEAxMQcG9sa29tdGVsLmNvbS5wbDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC
AQoCggEBAM4iZQVs6jN4H8GBmOeCGG9Miuoy/hwhrQE0uNIzg3fHrXlx7g0nWLSK
Qd73XPjv4Jmxp3qK4hg9vy/QwXJdbmqc/9RV4a/hdbMLNNg6xsBdU6pL33Ka1LoP
GTf1Z2Up4ZgX0Db54iPv7VTW/qgfQ3emJM4stFjVqNdTaKN/+ImFPrApbon9uWGR
QEm0t8iGsvu8EUjSQxnMKQe2xZev39zzNQ6vYcCvT4hmGdi21zr9Or5Wdk7BCcFW
20OpAmSPHFEYRoTnoHsRtu+yf4taRWrETF8WfYcQ7hhTk+1zyT8wlD+gj5zi1mMG
XHv0zX/WEkOEqLwx+k1cGufMQJEAmacCAwEAAaOCA9IwggPOMB8GA1UdIwQYMBaA
FGwu5GG0w7m98MqtpsFoerjUzB2gMB0GA1UdDgQWBBQPq0Cjf/DQhPGV4fCt9/mK
sPavkjCBmQYDVR0RBIGRMIGOghBwb2xrb210ZWwuY29tLnBsghR3d3cucG9sa29t
dGVsLmNvbS5wbIIYd3d3LmJpdXJvcHJhc293ZS5wbHVzLnBsghB3d3cubmV3cy5w
bHVzLnBsghRwa2kucG9sa29tdGVsLmNvbS5wbIIUYml1cm9wcmFzb3dlLnBsdXMu
cGyCDG5ld3MucGx1cy5wbDBKBgNVHSAEQzBBMAsGCWCGSAGG/WwCATAyBgVngQwB
ATApMCcGCCsGAQUFBwIBFhtodHRwOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwDgYD
VR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjBxBgNV
HR8EajBoMDKgMKAuhixodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vVGhhd3RlRVZS
U0FDQUcyLmNybDAyoDCgLoYsaHR0cDovL2NybDQuZGlnaWNlcnQuY29tL1RoYXd0
ZUVWUlNBQ0FHMi5jcmwwcQYIKwYBBQUHAQEEZTBjMCQGCCsGAQUFBzABhhhodHRw
Oi8vb2NzcC5kaWdpY2VydC5jb20wOwYIKwYBBQUHMAKGL2h0dHA6Ly9jYWNlcnRz
LmRpZ2ljZXJ0LmNvbS9UaGF3dGVFVlJTQUNBRzIuY3J0MAwGA1UdEwEB/wQCMAAw
ggF/BgorBgEEAdZ5AgQCBIIBbwSCAWsBaQB2AExj3JjlnB2riPYeij3ero+rRKM3
e1+blMP7oZz8wb4mAAABoKo290EAAAQDAEcwRQIhAN3yKyX8hlnEpPR8v1TVfQ+h
eJEhpPq4EWSsuX7cbgYkAiAnUt3c72xI8WZpRei/5PDUR91+WkmhCjxK8SUzJRVq
4QB3ANbVjanQF1Pzakqgx1dJAq/rx9ws04zZ92TIDIkZHp8CAAABoKo291IAAAQD
AEgwRgIhAKkJUyLkOCdBrLoKNBMCThWQl7gWzGAjQxeCIBrcv8YYAiEA6+aft6XX
GsP0wLKNJXXSSzb7i4FZ+hn7fMBmkjjpHBEAdgBEwr0M6RQOZKXJSgGTClqhuzWX
DgDuERaJaCocRNe1ZgAAAaCqNvdvAAAEAwBHMEUCIQC0wj/hZFQMID4enDg8v2CS
KhaMBOAPoQDMRnjaz7Lj+wIgaoh5kaF1M7Ii/sYAmuwZP9u0DNvGpbW19JC7jNLm
4vkwDQYJKoZIhvcNAQELBQADggEBAC5GfFQnWwg4Kep5LPXZPZPz4DhtLvO7bdxp
RPeUm3DOGlUwphXhW9h04wC4KW27T/DBFUMqPX4BTuPpPUOePH9kJMI+WWfyhRHu
S9z40/QB609kUP6K1biJyKEJvK0b491c+1Qy+ubKj85keyjWd8y7WrgEcHUHt6I4
wqXKNinCHnKjZyUYOY+dkCmwN9hleB31yQ6ZdxbEa9qxLfkl9qXhcKuPhxOigjgl
a9ymUFvePlLth1e1dS8o5SO4aDO0Iy9W9i/x461RhXQHALSf8RbnTKhDXzg+Wk3L
bk/d6jgq8BZdx651GhH/+xR+wKdWlhxOcLyhvXMgK7zYK3Hdllo=
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-04T11:39:19+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=Thawte EV RSA CA G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2020-07-02T12:43:02+00:00
Expires
2030-07-02T12:43:02+00:00
Days remaining
1367
Serial (hex)
07C2C6D32C6F0E0AABAC0DD0F9FCD5B3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

32:86:69:14:12:F3:0E:CE:5C:06:5F:D6:2F:43:92:A4:76:2D:1E:77:81:53:38:35:9D:F3:90:29:9F:BD:61:EF
Certificate extensions & PEM
subjectKeyIdentifier
6C:2E:E4:61:B4:C3:B9:BD:F0:CA:AD:A6:C1:68:7A:B8:D4:CC:1D:A0
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 Full Name: URI:http://crl4.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS User Notice: Explicit Text: Any use of this Certificate constitutes acceptance of the Relying Party Agreement located at https://www.digicert.com/rpa-ua
-----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
4121
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.

View certificate JSON

Registration / WHOIS →DNS records →