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

TLSv1.2

cyberworks.com.br · 187.0.207.124:443

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

Certificate verification failed

Subject
CN=mail.cyberworks.com.br
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2026-03-13T02:45:14+00:00
Expires
2027-04-14T02:45:13+00:00
Days remaining
149
Serial (hex)
0EC4DBD14EA81821EE84F320
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:mail.cyberworks.com.br

SHA-256 fingerprint

98:FF:00:B9:31:DC:E2:05:C6:62:7A:BA:3E:A4:41:9F:6A:DB:0D:B4:3D:B3:59:5E:01:8A:C3:72:2F:CB:92:C5
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr6alphasslca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr6alphasslca2025
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3 CPS: https://www.globalsign.com/repository/
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr6alphasslca2025.crl
subjectAltName
DNS:mail.cyberworks.com.br
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
subjectKeyIdentifier
4C:FB:D5:9A:4E:E8:87:B2:19:87:60:16:DD:D0:0A:07:FD:94:ED:5B
ct_precert_scts
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 : Mar 13 02:45:48.087 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0F:5B:B1:E0:6E:0C:86:C1:E0:C9:E4:05: 58:17:90:B1:5D:B1:25:88:9E:60:B8:6C:26:16:BD:C9: 60:B8:07:E5:02:20:21:9B:EA:7C:FD:AF:6A:F6:07:B9: D7:B0:F5:E5:5C:E9:1C:4A:BD:EF:16:5C:39:29:2C:F5: 87:18:81:70:43:AD 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 : Mar 13 02:45:48.047 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:9F:3F:95:FB:2B:A2:D7:8D:6A:55:1F: 51:B7:13:43:F1:7B:40:9E:E6:56:12:94:ED:77:E0:DF: D0:E4:F0:B9:0C:02:21:00:C3:39:3E:3A:4F:F5:A8:75: C0:00:D4:0D:34:ED:71:2E:2C:EE:14:0C:B0:F9:B8:86: 9D:F6:10:46:7F:7A:C1:76 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Mar 13 02:45:48.278 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:04:93:4E:9D:47:32:E9:78:68:DB:03:C8: D6:99:A0:99:AF:B1:F8:D5:B9:ED:AE:B4:0C:06:D5:BA: DE:2E:34:4A:02:20:21:C5:32:68:06:1B:58:2B:3E:DC: B8:A3:BF:4F:74:08:D1:3A:95:97:22:F5:AC:7A:F5:75: 3B:8F:7F:4B:0C:12
-----BEGIN CERTIFICATE-----
MIIGXjCCBUagAwIBAgIMDsTb0U6oGCHuhPMgMA0GCSqGSIb3DQEBCwUAMFUxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSswKQYDVQQDEyJH
bG9iYWxTaWduIEdDQyBSNiBBbHBoYVNTTCBDQSAyMDI1MB4XDTI2MDMxMzAyNDUx
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mzljflTpJO7V17sNpvooLAeXVhX/By0lSMIYLMWkGFI9rC5I6vYjQebM8xswOdWs
PNpmCq21QRlq1h+gAY7uffFm4jyGIIE78o6xIcQn/WCPSr4DZ1M2kJZpcgBPbEGg
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BggrBgEFBQcwAYYwaHR0cDovL29jc3AuZ2xvYmFsc2lnbi5jb20vZ3NnY2NyNmFs
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A1UdIwQYMBaAFMW0k49vK9weSL+3EDCFztGyu0gtMB0GA1UdDgQWBBRM+9WaTuiH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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-11-15T17:12:00+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Issuer
OU=GlobalSign Root CA - R6 O=GlobalSign CN=GlobalSign
Valid from
2025-05-21T02:36:52+00:00
Expires
2027-05-21T00:00:00+00:00
Days remaining
186
Serial (hex)
837D4EB89E912FE72CAD3BC7692DDC20
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A8:83:55:92:31:F8:38:8D:AF:35:CE:41:C8:10:10:40:AE:8F:D9:B6:56:43:42:47:B9:47:5A:F5:92:CC:08:CA
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
authorityKeyIdentifier
AE:6C:05:A3:93:13:E2:A2:E7:E2:D7:1C:D6:C7:F0:7F:C8:67:53:A0
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr6 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r6.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r6.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3
-----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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