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

dc-mail.webmatrix.com.br · 158.69.79.195:443

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=dc-mail.webmatrix.com.br
Issuer
C=AT O=ZeroSSL GmbH CN=ZeroSSL RSA DV SSL CA 2
Valid from
2026-06-21T00:00:00+00:00
Expires
2026-09-19T23:59:59+00:00
Days remaining
-19
Serial (hex)
2794082B0840B4A845A0FB990653674C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:dc-mail.webmatrix.com.br

SHA-256 fingerprint

4C:C6:E5:BC:96:F3:FD:81:45:C9:EE:4B:50:15:D7:40:6E:A8:BE:FF:4E:84:46:56:0B:3C:70:FF:97:73:B3:70
Certificate extensions & PEM
authorityKeyIdentifier
4B:BE:FA:76:84:23:44:04:B9:CE:BE:31:6F:E9:F5:32:06:FF:0C:57
subjectKeyIdentifier
EE:CD:2D:7B:69:C8:2A:5B:11:A3:AD:B0:51:69:7E:A3:0C:5B:60:30
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/ZeroSSLRSADVSSLCA2.crt OCSP - URI:http://ocsp.sectigo.com
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 : Jun 21 19:53:19.938 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6A:5C:C3:49:C0:6E:41:63:AD:5C:33:9D: BB:8C:B0:56:CB:B9:28:4E:14:4A:7F:69:4A:46:10:E1: 20:73:71:46:02:21:00:F8:56:AF:98:F1:EC:CB:87:70: BC:42:D0:FD:DE:E5:C0:01:AD:E6:C3:70:4F:C1:E2:3A: 38:ED:60:BA:53:6E:73 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Jun 21 19:53:19.956 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:55:A2:D3:BF:9E:4A:1D:88:E6:F3:47:BF: 46:C2:75:31:F8:A4:CB:3B:23:8B:70:BA:8B:F6:53:20: 90:CF:39:80:02:20:63:43:B4:2F:33:4A:E9:D7:49:50: 4F:5F:78:F7:D0:C1:3A:2F:20:26:BA:44:E1:04:B7:94: 5F:FB:B8:83:D3:80
subjectAltName
DNS:dc-mail.webmatrix.com.br
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-08T05:16:56+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=AT O=ZeroSSL GmbH CN=ZeroSSL RSA DV SSL CA 2
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2025-09-24T00:00:00+00:00
Expires
2035-09-23T23:59:59+00:00
Days remaining
3272
Serial (hex)
D0A908255F8E50E5F3396D1114702A37
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EC:9D:6B:CA:B9:81:8B:7D:D5:9E:D6:1D:A2:3A:65:8A:96:A9:C4:E9:50:ED:EE:0D:2D:A9:3E:7C:F2:17:47:80
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
4B:BE:FA:76:84:23:44:04:B9:CE:BE:31:6F:E9:F5:32:06:FF:0C:57
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----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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