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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

TLSv1.2

mail.twidcnet.com · 103.234.20.71:443

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=*.twidcnet.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Encryption Everywhere DV TLS CA - G1
Valid from
2024-06-12T00:00:00+00:00
Expires
2025-07-02T23:59:59+00:00
Days remaining
-462
Serial (hex)
02503D53D4B43F0DDA855CFEF54F7437
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.twidcnet.com, DNS:twidcnet.com

SHA-256 fingerprint

9D:D6:74:28:8D:EC:0A:56:6E:AA:7C:2A:AA:ED:EB:FC:16:E5:C5:9C:0E:62:04:D3:98:B6:AE:30:1B:60:FE:1C
Certificate extensions & PEM
authorityKeyIdentifier
55:74:4F:B2:72:4F:F5:60:BA:50:D1:D7:E6:51:5C:9A:01:87:1A:D7
subjectKeyIdentifier
BF:9D:7D:E7:4A:F4:8C:B6:51:4D:4A:BE:4C:39:1A:FF:FF:61:AA:DD
subjectAltName
DNS:*.twidcnet.com, DNS:twidcnet.com
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/EncryptionEverywhereDVTLSCA-G1.crt
basicConstraints
CA:FALSE
ct_precert_scts
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 : Jun 12 07:00:05.558 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:2D:79:87:81:68:D4:BE:4C:64:CF:AD:4B: 5C:1A:23:DB:CF:F9:A8:01:97:C9:F8:F0:27:1B:2B:86: 05:7E:96:82:02:20:0D:4E:D9:70:44:B9:A6:C4:90:49: 66:1E:69:1A:79:2A:3F:73:9B:2E:05:F2:BE:01:D8:26: D2:1E:27:8A:09:A6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0: 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8 Timestamp : Jun 12 07:00:05.467 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D2:75:7A:B0:4A:1B:D7:D7:6E:70:4A: 38:91:80:BF:C5:BC:27:2A:11:C9:4F:7C:B1:28:27:DB: 8F:E2:B2:EB:70:02:20:39:45:E8:3B:BE:2F:4B:95:A7: 23:F7:11:7C:82:41:E0:06:CE:CB:2E:C8:6F:C6:20:52: 55:91:9F:99:0B:94:1F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1: D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50 Timestamp : Jun 12 07:00:05.488 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DF:E6:D8:5E:C0:C9:02:4E:CC:53:20: D1:EB:16:19:D5:1E:53:4F:73:EF:6A:4E:B2:8C:03:7D: BE:81:57:57:5A:02:21:00:E1:57:EB:28:9C:CF:12:8C: 23:E3:7C:BB:88:B0:EF:B2:1E:05:32:13:70:83:CF:ED: 3B:0D:1E:D1:19:C2:7D:7A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-07T11:12:09+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Encryption Everywhere DV TLS CA - G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root CA
Valid from
2017-11-27T12:46:10+00:00
Expires
2027-11-27T12:46:10+00:00
Days remaining
416
Serial (hex)
0279AC458BC1B245ABF98053CD2C9BB1
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

15:EB:0A:75:C6:73:AB:FB:DC:D2:FA:FC:02:82:3C:91:FE:6C:BC:36:E0:07:88:44:2C:87:54:D7:2B:EC:37:17
Certificate extensions & PEM
subjectKeyIdentifier
55:74:4F:B2:72:4F:F5:60:BA:50:D1:D7:E6:51:5C:9A:01:87:1A:D7
authorityKeyIdentifier
03:DE:50:35:56:D1:4C:BB:66:F0:A3:E2:1B:1B:C3:97:B2:3D:D1:55
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootCA.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.2 CPS: https://www.digicert.com/CPS Policy: 2.23.140.1.2.1
-----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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