DNS
SSL certificate
TLSv1.3pop-nix.com · 103.246.18.21:443
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=pop-nix.com
- Issuer
- C=US O=Let's Encrypt CN=R12
- Valid from
- 2025-10-01T05:20:28+00:00
- Expires
- 2025-12-30T05:20:27+00:00
- Days remaining
- -277
- Serial (hex)
- 057A6860B1C9B027C8EAAFA063B3EC536632
- Signature
- RSA-SHA256
- Public key
- RSA 2048
Subject alternative names (SAN)
DNS:pop-nix.com, DNS:webmail.pop-nix.com, DNS:www.pop-nix.com
SHA-256 fingerprint
7D:AD:30:B3:7F:B6:E3:E4:D2:95:22:05:81:F2:34:75:D9:F7:AB:BB:EA:8D:50:0D:A8:6A:2C:28:E0:33:33:D8
Certificate extensions & PEM
- keyUsage
- Digital Signature, Key Encipherment
- extendedKeyUsage
- TLS Web Server Authentication, TLS Web Client Authentication
- basicConstraints
- CA:FALSE
- subjectKeyIdentifier
- 26:81:DD:6C:2C:1E:1D:EE:2F:9B:10:48:FB:21:CD:46:3F:67:97:8C
- 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:pop-nix.com, DNS:webmail.pop-nix.com, DNS:www.pop-nix.com
- certificatePolicies
- Policy: 2.23.140.1.2.1
- crlDistributionPoints
- Full Name: URI:http://r12.c.lencr.org/51.crl
- ct_precert_scts
- Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C: 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0 Timestamp : Oct 1 06:18:58.263 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:91:BC:C4:07:5B:B9:84:D5:1E:55:F5: 02:4D:3E:6E:76:F5:FE:F6:2E:77:AB:FE:46:6D:ED:13: 44:F1:28:07:AC:02:21:00:D3:EB:95:14:20:7A:EF:21: 10:79:09:3A:4B:C8:A7:29:5D:7F:BC:25:F5:CA:D9:C4: 4B:DA:E4:CB:DF:B0:58:74 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13: F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A Timestamp : Oct 1 06:18:58.246 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:E3:89:06:8C:FF:AF:55:F1:0C:31:38: 4E:E4:1E:C0:CE:64:01:42:04:52:7E:63:AD:EB:90:3A: 4A:8C:53:BB:69:02:21:00:A8:74:F8:A5:EF:C2:1D:67: 01:4B:5A:2D:47:45:8B:50:1A:02:D3:DF:11:21:A3:27: 20:A6:05:80:B0:11:B9:79
-----BEGIN CERTIFICATE----- MIIFGjCCBAKgAwIBAgISBXpoYLHJsCfI6q+gY7PsU2YyMA0GCSqGSIb3DQEBCwUA MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD EwNSMTIwHhcNMjUxMDAxMDUyMDI4WhcNMjUxMjMwMDUyMDI3WjAWMRQwEgYDVQQD Ewtwb3Atbml4LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKYN o54BHcUNj7Ds9iOFWEFc7TqA9fVfFQIW2tH4Kh5AAo63TxFOMJtwWbCt2QtaZ/zA 2JwZzDsyW3YiKHH6fB2gWCeFQfd9s6qTllYeVAaRtSG1Rf4Z8kHKHGRLuDvqyzbG KkYaet9emWpuZYnkHRgdcERbFtvc9C+TQld5NQDYdJrXt9/C1OgfW8uPCjLZQ5zn YLCMK8C5vK1Rf9jIcwa93vFao89tJPwUyY07Vb++igIZKnY5lEtK/lg8/cxUV1aE WU3e7Y41rpufnx2WHKr1Ly2PI894aGNS6dNPNT8IOKrOmRtIwUs/LDKZuc0nrsEL KiD6vf11qA3u/4+A2t0CAwEAAaOCAkMwggI/MA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQUJoHdbCweHe4vmxBI+yHNRj9nl4wwHwYDVR0jBBgwFoAUALUp8i2ObzHom0yt eD763OkM0dIwMwYIKwYBBQUHAQEEJzAlMCMGCCsGAQUFBzAChhdodHRwOi8vcjEy LmkubGVuY3Iub3JnLzA8BgNVHREENTAzggtwb3Atbml4LmNvbYITd2VibWFpbC5w b3Atbml4LmNvbYIPd3d3LnBvcC1uaXguY29tMBMGA1UdIAQMMAowCAYGZ4EMAQIB MC4GA1UdHwQnMCUwI6AhoB+GHWh0dHA6Ly9yMTIuYy5sZW5jci5vcmcvNTEuY3Js MIIBBgYKKwYBBAHWeQIEAgSB9wSB9ADyAHcAzPsPaoVxCWX+lZtTzumyfCLphVwN l422qX5UwP5MDbAAAAGZnmyNVwAABAMASDBGAiEAkbzEB1u5hNUeVfUCTT5udvX+ 9i53q/5Gbe0TRPEoB6wCIQDT65UUIHrvIRB5CTpLyKcpXX+8JfXK2cRL2uTL37BY dAB3ABLxTjS9U3JMhAYZw48/ehP457Vih4icbTAFhOvlhiY6AAABmZ5sjUYAAAQD AEgwRgIhAOOJBoz/r1XxDDE4TuQewM5kAUIEUn5jreuQOkqMU7tpAiEAqHT4pe/C HWcBS1otR0WLUBoC098RIaMnIKYFgLARuXkwDQYJKoZIhvcNAQELBQADggEBAKAc fUGwYn2LvIRWZy/iv931cFleeOcBNV35k3hxGJimD6e0B6i/6XXMNwhLT6CorP8+ qLEubcgL2ekwaJ8D5iLOMnH51XGfLyD9wZSNpky1UeJhTz+EoZ6gAoJHYF/PzgGc mERLhqe/pIHpwgCe4k5iiGkHXNc3P/9PREuVx6cpeHqK9s1E7A4eao/ARboOFmxK Q5Eve4EK4KdmFVdXFyAmpzXzGTP8Eh4zF1UX0k0YpaksLe6DZKD11OnfjTr8DvEL bDkSJT4V/OBJE8NeLyt/8mMl39cfypzkva+uTnmMPop4AvMgBQOJmaAKAqtgd2t6 SBI+greZ5fUbS6xNsPY= -----END CERTIFICATE-----
Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-02T17:07:09+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
- 161
- 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.