DNS
SSL certificate
TLSv1.3ns2.dns4you.net · 43.252.215.118:443
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages:
error:0A000086:SSL routines::certificate verify failed
The certificate has expired.
Certificate verification failed
- Subject
- CN=cpcalendars.doktoronline.com
- Issuer
- C=US O=Let's Encrypt CN=R12
- Valid from
- 2026-03-16T20:09:45+00:00
- Expires
- 2026-06-14T20:09:44+00:00
- Days remaining
- -143
- Serial (hex)
- 05AB75CF63D2ED65904A66ECCD96C8680958
- Signature
- RSA-SHA256
- Public key
- RSA 2048
Subject alternative names (SAN)
DNS:apotheken-kundendienst.kwikmedz.com, DNS:cpanel.doktoronline.com, DNS:cpanel.kwikmedz.com, DNS:cpcalendars.doktoronline.com, DNS:cpcalendars.kwikmedz.com, DNS:cpcontacts.doktoronline.com, DNS:cpcontacts.kwikmedz.com, DNS:doktoronline.com, DNS:doktoronline.kwikmedz.com, DNS:expressdoktorcom.kwikmedz.com, DNS:kwikmedz.com, DNS:kwikmedz.kwikmedz.com, DNS:mail.doktoronline.com, DNS:mail.kwikmedz.com, DNS:webdisk.doktoronline.com, DNS:webdisk.kwikmedz.com, DNS:webmail.doktoronline.com, DNS:webmail.kwikmedz.com, DNS:www.apotheken-kundendienst.kwikmedz.com, DNS:www.doktoronline.com, DNS:www.doktoronline.kwikmedz.com, DNS:www.expressdoktorcom.kwikmedz.com, DNS:www.kwikmedz.com, DNS:www.kwikmedz.kwikmedz.com
SHA-256 fingerprint
40:AD:1D:9A:16:9E:F2:C7:4A:F1:AF:CC:06:54:40:92:5B:B9:EF:B6:19:D7:BC:18:67:8C:92:61:20:E2:D8:F7
Certificate extensions & PEM
- keyUsage
- Digital Signature, Key Encipherment
- extendedKeyUsage
- TLS Web Server Authentication
- basicConstraints
- CA:FALSE
- subjectKeyIdentifier
- E1:F2:F8:0C:0F:E9:28:54:46:8B:DF:96:03:F9:EB:0C:E6:EF:01:48
- authorityKeyIdentifier
- 00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
- authorityInfoAccess
- CA Issuers - URI:http://r12.i.lencr.org/
- subjectAltName
- DNS:apotheken-kundendienst.kwikmedz.com, DNS:cpanel.doktoronline.com, DNS:cpanel.kwikmedz.com, DNS:cpcalendars.doktoronline.com, DNS:cpcalendars.kwikmedz.com, DNS:cpcontacts.doktoronline.com, DNS:cpcontacts.kwikmedz.com, DNS:doktoronline.com, DNS:doktoronline.kwikmedz.com, DNS:expressdoktorcom.kwikmedz.com, DNS:kwikmedz.com, DNS:kwikmedz.kwikmedz.com, DNS:mail.doktoronline.com, DNS:mail.kwikmedz.com, DNS:webdisk.doktoronline.com, DNS:webdisk.kwikmedz.com, DNS:webmail.doktoronline.com, DNS:webmail.kwikmedz.com, DNS:www.apotheken-kundendienst.kwikmedz.com, DNS:www.doktoronline.com, DNS:www.doktoronline.kwikmedz.com, DNS:www.expressdoktorcom.kwikmedz.com, DNS:www.kwikmedz.com, DNS:www.kwikmedz.kwikmedz.com
- certificatePolicies
- Policy: 2.23.140.1.2.1
- crlDistributionPoints
- Full Name: URI:http://r12.c.lencr.org/89.crl
- ct_precert_scts
- Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8: 5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3 Timestamp : Mar 16 21:08:15.386 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B7:F5:B9:38:CA:1D:D7:44:E0:08:F9: C7:9E:BD:0D:D4:D8:FE:8A:E4:08:C0:CE:FB:AC:D6:5A: 66:6D:38:6B:D1:02:20:43:49:35:FD:A5:C8:08:B1:03: DA:1D:C1:BC:F7:FE:5B:61:4C:70:F0:F0:A1:82:6B:4B: 09:8D:FC:48:1D:75:1F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 71:7E:95:F3:C2:38:8A:6D:B1:E3:84:49:3D:31:E1:5A: A9:62:08:76:2D:42:00:E0:05:0C:D0:67:B5:A6:61:E2 Timestamp : Mar 16 21:08:15.608 2026 GMT Extensions: 00:00:05:00:0B:D2:76:65 Signature : ecdsa-with-SHA256 30:46:02:21:00:9D:97:52:63:ED:66:01:90:D2:21:57: 3F:F4:A4:89:55:E6:F2:3B:DA:76:6D:B0:C4:D0:63:2E: B7:9A:EA:54:D3:02:21:00:81:E8:AF:07:6D:F1:E0:92: 7B:42:AB:06:E6:AF:55:24:FB:10:91:CE:C1:93:E4:6D: AE:54:2F:4F:B6:65:8C:A6
-----BEGIN CERTIFICATE----- MIIHZTCCBk2gAwIBAgISBat1z2PS7WWQSmbszZbIaAlYMA0GCSqGSIb3DQEBCwUA MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD EwNSMTIwHhcNMjYwMzE2MjAwOTQ1WhcNMjYwNjE0MjAwOTQ0WjAnMSUwIwYDVQQD ExxjcGNhbGVuZGFycy5kb2t0b3JvbmxpbmUuY29tMIIBIjANBgkqhkiG9w0BAQEF AAOCAQ8AMIIBCgKCAQEAs5gCorfu5AhsCwFBiVR5/IaGjID1c7tZAR6SF/hPgpa3 1TG1z50HtUn2cY7LVHGDaG3S9CgyC4S0yewh6pab2Va/Wv/aj9F0aJK43TlxRuy6 JSOayiytnHTOT9zpyRw1shfWW/wiyCA28L+et8KeFrlbddWdeqPoIe0ynWvPXtqg 2UB+Ri0D/QQco8c+DPNcyeFi3nB/RgIFioBhLG7DFSJaS9qMxcwj7kaUN4n+fZAh Bfc2NR5Oc43YQsDs8gCrDs9thbuDIt0uw1+Px/eqqZ0hOBJI0R6ee/XlE1liVgEI eS7RBK/GUTMaX6Ep0KNUVIoio9rB7GyKQtj3FBbXrQIDAQABo4IEfTCCBHkwDgYD VR0PAQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAw HQYDVR0OBBYEFOHy+AwP6ShURovflgP56wzm7wFIMB8GA1UdIwQYMBaAFAC1KfIt jm8x6JtMrXg++tzpDNHSMDMGCCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0 cDovL3IxMi5pLmxlbmNyLm9yZy8wggJ3BgNVHREEggJuMIICaoIjYXBvdGhla2Vu LWt1bmRlbmRpZW5zdC5rd2lrbWVkei5jb22CF2NwYW5lbC5kb2t0b3JvbmxpbmUu Y29tghNjcGFuZWwua3dpa21lZHouY29tghxjcGNhbGVuZGFycy5kb2t0b3Jvbmxp bmUuY29tghhjcGNhbGVuZGFycy5rd2lrbWVkei5jb22CG2NwY29udGFjdHMuZG9r dG9yb25saW5lLmNvbYIXY3Bjb250YWN0cy5rd2lrbWVkei5jb22CEGRva3Rvcm9u bGluZS5jb22CGWRva3Rvcm9ubGluZS5rd2lrbWVkei5jb22CHWV4cHJlc3Nkb2t0 b3Jjb20ua3dpa21lZHouY29tggxrd2lrbWVkei5jb22CFWt3aWttZWR6Lmt3aWtt ZWR6LmNvbYIVbWFpbC5kb2t0b3JvbmxpbmUuY29tghFtYWlsLmt3aWttZWR6LmNv bYIYd2ViZGlzay5kb2t0b3JvbmxpbmUuY29tghR3ZWJkaXNrLmt3aWttZWR6LmNv bYIYd2VibWFpbC5kb2t0b3JvbmxpbmUuY29tghR3ZWJtYWlsLmt3aWttZWR6LmNv bYInd3d3LmFwb3RoZWtlbi1rdW5kZW5kaWVuc3Qua3dpa21lZHouY29tghR3d3cu ZG9rdG9yb25saW5lLmNvbYIdd3d3LmRva3Rvcm9ubGluZS5rd2lrbWVkei5jb22C IXd3dy5leHByZXNzZG9rdG9yY29tLmt3aWttZWR6LmNvbYIQd3d3Lmt3aWttZWR6 LmNvbYIZd3d3Lmt3aWttZWR6Lmt3aWttZWR6LmNvbTATBgNVHSAEDDAKMAgGBmeB DAECATAuBgNVHR8EJzAlMCOgIaAfhh1odHRwOi8vcjEyLmMubGVuY3Iub3JnLzg5 LmNybDCCAQ0GCisGAQQB1nkCBAIEgf4EgfsA+QB2AEmcm2neHXzs/DbezYdkprhb rwqHgBnRVVL76esp3fjDAAABnPh6X5oAAAQDAEcwRQIhALf1uTjKHddE4Aj5x569 DdTY/orkCMDO+6zWWmZtOGvRAiBDSTX9pcgIsQPaHcG89/5bYUxw8PChgmtLCY38 SB11HwB/AHF+lfPCOIptseOEST0x4VqpYgh2LUIA4AUM0Ge1pmHiAAABnPh6YHgA CAAABQAL0nZlBAMASDBGAiEAnZdSY+1mAZDSIVc/9KSJVebyO9p2bbDE0GMut5rq VNMCIQCB6K8HbfHgkntCqwbmr1Uk+xCRzsGT5G2uVC9PtmWMpjANBgkqhkiG9w0B AQsFAAOCAQEAUCnOs1kWPk3hSahoNNpSFbtKWqEKiMhVR2l5oIHNrr2w8+qRXmuk VYfkopEepQ5utoQUePQR5drS1zM6/KUNMEpLpdhokDd5lvNbkC65a5Qj9XHKQwUA N2bOd+V0waYYIbyo5r5NwLr3k4xtFSh57r+EUTu1jAIdSeESccppOal8F7h/lRLc +k2MWevUU5ih5o0+fuO+TR3WWOHOgGh3H2UhBl6F56GPXFUWotwC9+zjP9me5jU5 FTfKVg2Mpk7RmWfrlA372ov+RXDOjPXDBWox9om3Fu2aajah3v+xPYiip2NTUNcs GPiiO5WRW/WK/8GsP8Wtd3UaLQhKeeZHhw== -----END CERTIFICATE-----
Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-04T09:30:32+00:00
Server-presented chain · 1 additional certificate
Chain certificate 1
- Subject
- C=US O=Let's Encrypt CN=R12
- Issuer
- C=US O=Internet Security Research Group CN=ISRG Root X1
- Valid from
- 2024-03-13T00:00:00+00:00
- Expires
- 2027-03-12T23:59:59+00:00
- Days remaining
- 128
- Serial (hex)
- C212324B70A9B49171DC40F7E285263C
- Signature
- RSA-SHA256
- Public key
- RSA 2048
Subject alternative names (SAN)
No SAN extension was presented.
SHA-256 fingerprint
13:1F:CE:77:84:01:68:99:A5:A0:02:03:A9:EF:C8:0F:18:EB:BD:75:58:07:17:ED:C1:55:35:80:93:08:36:EC
Certificate extensions & PEM
- keyUsage
- Digital Signature, Certificate Sign, CRL Sign
- extendedKeyUsage
- TLS Web Client Authentication, TLS Web Server Authentication
- basicConstraints
- CA:TRUE, pathlen:0
- subjectKeyIdentifier
- 00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
- authorityKeyIdentifier
- 79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
- authorityInfoAccess
- CA Issuers - URI:http://x1.i.lencr.org/
- certificatePolicies
- Policy: 2.23.140.1.2.1
- crlDistributionPoints
- Full Name: URI:http://x1.c.lencr.org/
-----BEGIN CERTIFICATE----- MIIFBjCCAu6gAwIBAgIRAMISMktwqbSRcdxA9+KFJjwwDQYJKoZIhvcNAQELBQAw TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjQwMzEzMDAwMDAw WhcNMjcwMzEyMjM1OTU5WjAzMQswCQYDVQQGEwJVUzEWMBQGA1UEChMNTGV0J3Mg RW5jcnlwdDEMMAoGA1UEAxMDUjEyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB CgKCAQEA2pgodK2+lP474B7i5Ut1qywSf+2nAzJ+Npfs6DGPpRONC5kuHs0BUT1M 5ShuCVUxqqUiXXL0LQfCTUA83wEjuXg39RplMjTmhnGdBO+ECFu9AhqZ66YBAJpz kG2Pogeg0JfT2kVhgTU9FPnEwF9q3AuWGrCf4yrqvSrWmMebcas7dA8827JgvlpL Thjp2ypzXIlhZZ7+7Tymy05v5J75AEaz/xlNKmOzjmbGGIVwx1Blbzt05UiDDwhY XS0jnV6j/ujbAKHS9OMZTfLuevYnnuXNnC2i8n+cF63vEzc50bTILEHWhsDp7CH4 WRt/uTp8n1wBnWIEwii9Cq08yhDsGwIDAQABo4H4MIH1MA4GA1UdDwEB/wQEAwIB hjAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwEwEgYDVR0TAQH/BAgwBgEB /wIBADAdBgNVHQ4EFgQUALUp8i2ObzHom0yteD763OkM0dIwHwYDVR0jBBgwFoAU ebRZ5nu25eQBc4AIiMgaWPbpm24wMgYIKwYBBQUHAQEEJjAkMCIGCCsGAQUFBzAC hhZodHRwOi8veDEuaS5sZW5jci5vcmcvMBMGA1UdIAQMMAowCAYGZ4EMAQIBMCcG A1UdHwQgMB4wHKAaoBiGFmh0dHA6Ly94MS5jLmxlbmNyLm9yZy8wDQYJKoZIhvcN AQELBQADggIBAI910AnPanZIZTKS3rVEyIV29BWEjAK/duuz8eL5boSoVpHhkkv3 4eoAeEiPdZLj5EZ7G2ArIK+gzhTlRQ1q4FKGpPPaFBSpqV/xbUb5UlAXQOnkHn3m FVj+qYv87/WeY+Bm4sN3Ox8BhyaU7UAQ3LeZ7N1X01xxQe4wIAAE3JVLUCiHmZL+ qoCUtgYIFPgcg350QMUIWgxPXNGEncT921ne7nluI02V8pLUmClqXOsCwULw+PVO ZCB7qOMxxMBoCUeL2Ll4oMpOSr5pJCpLN3tRA2s6P1KLs9TSrVhOk+7LX28NMUlI usQ/nxLJID0RhAeFtPjyOCOscQBA53+NRjSCak7P4A5jX7ppmkcJECL+S0i3kXVU y5Me5BbrU8973jZNv/ax6+ZK6TM8jWmimL6of6OrX7ZU6E2WqazzsFrLG3o2kySb zlhSgJ81Cl4tv3SbYiYXnJExKQvzf83DYotox3f0fwv7xln1A2ZLplCb0O+l/AK0 YE0DS2FPxSAHi0iwMfW2nNHJrXcY3LLHD77gRgje4Eveubi2xxa+Nmk/hmhLdIET iVDFanoCrMVIpQ59XWHkzdFmoHXHBV7oibVjGSO7ULSQ7MJ1Nz51phuDJSgAIU7A 0zrLnOrAj/dfrlEWRhCvAgbuwLZX1A2sjNjXoPOHbsPiy+lO1KF8/XY7 -----END CERTIFICATE-----
One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.