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THE CERTIFICATE BEHIND THE CONNECTION

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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.exabytes.net · 110.4.40.8:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`webmail.exabytes.com' did not match expected CN=`mail.exabytes.net'

Certificate verification failed

Subject
CN=webmail.exabytes.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2025-10-27T00:00:00+00:00
Expires
2026-11-27T23:59:59+00:00
Days remaining
59
Serial (hex)
06A67BA8DA49A5C8C0746D24803B407B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:webmail.exabytes.com, DNS:mail.exabytes.sg, DNS:smtp.exabytes.com

SHA-256 fingerprint

4C:24:31:F5:76:9F:7F:F1:93:19:C0:5E:03:50:41:2E:15:B2:8B:D6:E9:B8:01:81:35:B1:EB:62:13:54:C3:EB
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
2C:DA:DE:69:5F:7E:AA:48:81:5C:60:F6:D3:09:6F:4E:BF:5C:96:AD
subjectAltName
DNS:webmail.exabytes.com, DNS:mail.exabytes.sg, DNS:smtp.exabytes.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
crlDistributionPoints
Full Name: URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Oct 27 02:08:16.544 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C7:A2:49:BB:02:EE:29:9E:5E:D7:54: B1:91:7E:44:78:C9:D1:55:19:30:B6:DE:17:E3:EA:BC: 9B:C9:9B:74:2A:02:20:29:F7:29:8A:14:11:3B:43:C7: 37:CA:89:C6:A1:3C:A3:66:BD:45:48:82:96:83:EA:BA: F2:BC:A4:BD:60:C8:44 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Oct 27 02:08:16.564 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:10:FA:A2:1C:96:68:D7:F0:65:5A:26:07: D9:1D:0A:6D:EE:EA:B7:7D:C8:25:18:21:A1:80:E3:B8: A9:03:3B:66:02:21:00:EC:0C:93:62:F1:1D:9A:01:77: 3A:09:B9:97:03:5F:5A:9F:4B:94:57:BE:C3:92:CF:23: 23:C1:23:CA:9B:95:6A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Oct 27 02:08:16.584 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4B:A1:77:70:00:ED:C3:74:47:DE:90:0E: F5:4F:57:0E:2B:F8:0E:E9:EE:53:1C:CA:C4:2B:94:FF: 7C:7C:15:19:02:21:00:D1:66:E3:C1:D7:68:24:4F:09: 39:95:3E:45:96:2F:27:D7:72:E3:59:2E:98:8A:51:F1: 77:D6:9C:26:69:F6:37
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-29T13:34:55+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
398
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
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/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----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.

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