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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

mail.twincityvoip.com · 192.69.77.66:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `mail.twincityvoip.com'

Certificate verification failed

Subject
CN=*.mnvoip.com
Issuer
C=US O=SSL Corporation CN=SSL.com TLS Issuing RSA CA R1
Valid from
2026-10-06T15:37:46+00:00
Expires
2027-04-22T15:37:46+00:00
Days remaining
177
Serial (hex)
1984361EE0ADCBEAA1BE1C0E252D14EB
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.mnvoip.com, DNS:mnvoip.com

SHA-256 fingerprint

4C:6C:EB:E6:5B:61:E9:D2:AC:28:D1:BD:0C:A1:68:53:CC:C7:C9:4B:1B:90:92:91:AF:34:58:4E:88:69:C1:E6
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
79:BA:94:77:A0:0D:19:DD:34:E6:39:A4:FC:4C:A5:D2:5A:6D:F5:8C
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSL.com-TLS-I-RSA-R1.cer OCSP - URI:http://ocsps.ssl.com
subjectAltName
DNS:*.mnvoip.com, DNS:mnvoip.com
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.38064.1.3.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSL.com-TLS-I-RSA-R1.crl
subjectKeyIdentifier
45:6B:64:42:7E:15:16:5E:D8:C4:69:FA:4B:A8:D8:18:8E:01:9C:9F
keyUsage
Digital Signature, Key Encipherment
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 : Oct 6 15:47:47.920 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EF:6C:B0:1B:41:D1:4D:2A:FC:5D:33: 80:9A:25:73:CF:28:C3:21:88:8A:D3:31:53:5F:F6:D1: FA:75:39:3C:E7:02:21:00:8A:88:78:D6:9C:51:B5:26: 51:FA:C3:8D:43:FD:45:AC:2B:BE:4B:E5:AD:BA:34:C3: 8B:A9:76:44:49:A9:26:92 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Oct 6 15:47:47.892 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:CD:9C:F6:9B:6D:AB:46:BC:2C:55:02: D1:7D:2F:C1:C7:29:BB:17:8D:4C:F7:11:7F:DE:EA:B5: CD:A3:19:1B:68:02:21:00:CE:E7:B9:B7:75:36:7E:26: C2:94:03:84:A5:3C:4F:D8:1B:06:A4:0C:DA:56:46:4E: F2:AF:22:4A:71:54:25:20 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 6 15:47:47.909 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:99:CD:72:A8:32:A8:DB:AA:E3:F0:45: CC:1E:CC:23:62:08:71:98:E8:1E:2A:13:AA:42:51:B1: 0C:20:14:F4:6B:02:20:4A:A2:FC:0E:08:E4:C6:2E:E7: 53:E8:25:76:84:26:4B:B0:03:69:DA:29:85:88:58:31: 37:9F:F5:09:19:91:3A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-26T23:50:03+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=SSL Corporation CN=SSL.com TLS Issuing RSA CA R1
Issuer
C=US O=SSL Corporation CN=SSL.com TLS RSA Root CA 2022
Valid from
2022-10-21T17:02:03+00:00
Expires
2032-10-18T17:02:02+00:00
Days remaining
2183
Serial (hex)
26B9FFE4596FA61E1AF21C63D672748A
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

BF:BC:39:E9:FA:2B:84:C9:A9:23:37:E2:34:4E:E2:38:1D:8D:3D:3A:E8:EA:75:EF:4E:48:E5:80:7E:D8:0C:69
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
FB:2E:37:EE:E3:84:7A:27:2E:CD:19:35:B1:33:7C:FF:D4:44:42:B9
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSLcom-TLS-Root-2022-RSA.cer
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.ssl.com/repository
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSLcom-TLS-Root-2022-RSA.crl
subjectKeyIdentifier
79:BA:94:77:A0:0D:19:DD:34:E6:39:A4:FC:4C:A5:D2:5A:6D:F5:8C
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----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

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