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

mx0a-00120c01.pphosted.com · 67.231.145.75:443

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
The certificate has expired.

Certificate verification failed

Subject
CN=securemail.simmonsbank.com
Issuer
C=US O=Network Solutions L.L.C. CN=Network Solutions RSA DV SSL CA 3
Valid from
2025-11-19T00:00:00+00:00
Expires
2026-05-20T23:59:59+00:00
Days remaining
-170
Serial (hex)
19FF28151AABACA8FED60EAC8EE67D9D
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:securemail.simmonsbank.com, DNS:www.securemail.simmonsbank.com

SHA-256 fingerprint

84:B2:D1:5C:69:FB:54:D6:77:68:91:12:7C:E0:AB:49:F4:48:2A:22:6B:91:45:E3:5A:31:B5:17:4E:F8:53:E6
Certificate extensions & PEM
authorityKeyIdentifier
05:00:54:EC:10:AA:7E:C0:BC:FA:E8:E8:FA:F4:CA:5A:75:6A:63:3B
subjectKeyIdentifier
0F:E3:BE:7D:DE:22:14:95:42:C2:3B:C3:56:88:41:32:9D:F6:1E:1F
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.4 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.netsolssl.com/NetworkSolutionsRSADVSSLCA3.crt OCSP - URI:http://ocsp.netsolssl.com
subjectAltName
DNS:securemail.simmonsbank.com, DNS:www.securemail.simmonsbank.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 0E:57:94:BC:F3:AE:A9:3E:33:1B:2C:99:07:B3:F7:90: DF:9B:C2:3D:71:32:25:DD:21:A9:25:AC:61:C5:4E:21 Timestamp : Nov 19 15:57:38.375 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:28:CF:CC:EB:41:25:EA:9C:F7:AB:0E:C3: 66:E8:D1:73:0E:56:88:F6:81:09:E1:55:E3:8C:FB:3D: 1B:51:C2:7D:02:21:00:8D:DD:D8:6E:3F:5F:1E:8B:06: 5F:93:A7:F2:91:08:14:00:EF:9A:F9:42:E6:A0:A7:9D: 9C:63:2F:DD:C8:91:36 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D1:6E:A9:A5:68:07:7E:66:35:A0:3F:37:A5:DD:BC:03: A5:3C:41:12:14:D4:88:18:F5:E9:31:B3:23:CB:95:04 Timestamp : Nov 19 15:57:38.571 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:93:D4:9B:1D:18:5A:64:30:5A:6C:43: 09:D9:26:B8:34:4E:C0:5A:A2:E3:3B:95:A0:E1:E2:1A: F5:46:41:EB:A8:02:21:00:D0:0D:C5:5C:34:9A:35:07: FD:6A:87:4D:1A:FF:44:C6:FF:B0:1B:AA:AF:85:4D:55: EB:01:72:F8:B1:90:D6:F9 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 19:86:D4:C7:28:AA:6F:FE:BA:03:6F:78:2A:4D:01:91: AA:CE:2D:72:31:0F:AE:CE:5D:70:41:2D:25:4C:C7:D4 Timestamp : Nov 19 15:57:38.378 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:52:CE:69:28:4A:84:A9:33:C2:94:A4:47: F5:BC:E6:CC:73:38:B1:58:C0:08:2F:57:49:D8:70:DF: E2:B0:E9:DD:02:20:62:13:F7:34:C5:53:13:03:CF:C7: 8F:C6:26:35:9C:E3:2B:75:9A:B8:07:C9:B3:C0:F3:CF: 28:B5:DB:6A:A2:FD
-----BEGIN CERTIFICATE-----
MIIGnzCCBQegAwIBAgIQGf8oFRqrrKj+1g6sjuZ9nTANBgkqhkiG9w0BAQsFADBc
MQswCQYDVQQGEwJVUzEhMB8GA1UEChMYTmV0d29yayBTb2x1dGlvbnMgTC5MLkMu
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wwzRN+eVU6Gb5EGX39yuJcvCog==
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T14:22:12+00:00

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

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