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

mxa-00246701.gslb.pphosted.com · 148.163.153.91:443

Unverified
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

Certificate verification failed

Subject
CN=securemail.nepgroup.com
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-06-04T00:00:00+00:00
Expires
2026-12-19T23:59:59+00:00
Days remaining
43
Serial (hex)
6B3C0662305F4DAABB13FF39677AA025
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:securemail.nepgroup.com, DNS:www.securemail.nepgroup.com

SHA-256 fingerprint

94:AB:8C:26:95:83:92:55:F8:14:1B:29:41:0D:7A:65:48:0C:63:EC:B7:A9:E8:B0:5F:5E:C5:1F:9D:F8:58:86
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
4A:36:11:16:3F:6B:12:E6:2E:03:67:9E:E5:E1:8A:40:B6:07:7E:E3
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:securemail.nepgroup.com, DNS:www.securemail.nepgroup.com
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 : Jun 4 12:42:19.526 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:AD:9E:91:C5:FC:4F:F9:BE:4F:92:EC: 10:A8:00:56:4C:59:4A:DC:C1:A4:24:6D:8C:74:9C:8C: BA:FC:F4:69:58:02:20:5F:C6:70:3A:F0:40:47:FA:25: C1:9F:55:67:12:5B:B7:0F:CD:63:5E:5B:1C:03:DC:A1: 5D:0C:22:15:7A:56:A1 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Jun 4 12:42:19.596 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:1A:77:C7:CF:A8:1F:81:7B:AE:54:3E:E6: F1:C6:2B:82:A7:D8:AE:CB:20:44:59:A1:AA:DA:C7:C1: 0D:5A:26:69:02:20:7E:87:F4:C1:86:7E:B3:EC:0D:BB: C6:05:D8:98:D5:B1:C2:82:82:6F:F0:13:BE:8B:8E:F2: 5D:BB:9D:08:FE:72 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Jun 4 12:42:20.140 2026 GMT Extensions: 00:00:05:00:03:36:F2:BF Signature : ecdsa-with-SHA256 30:44:02:20:25:60:8C:5F:79:7B:08:66:B3:0A:D8:1C: 24:2A:AB:4A:DB:8F:F0:9F:8A:83:13:68:83:99:FA:99: 40:E4:B4:AC:02:20:41:65:90:2E:AC:E5:E4:BD:1A:CB: B6:59:C9:5E:C1:37:29:FA:8C:3F:01:2C:9A:A1:E8:06: 7C:75:D0:D5:A2:65
-----BEGIN CERTIFICATE-----
MIIGqjCCBRKgAwIBAgIQazwGYjBfTaq7E/85Z3qgJTANBgkqhkiG9w0BAQsFADBg
MQswCQYDVQQGEwJHQjEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD
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nhZoFcw2bgMtJOAbl1vY9TEpZOCYEWiYdC9T184Q
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T22:39:12+00:00

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

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