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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

mailserver.ampernet.com.br · 187.60.210.4:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=*.ampernet.com.br
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2026-05-18T00:00:00+00:00
Expires
2026-12-02T23:59:59+00:00
Days remaining
42
Serial (hex)
04E8377FC0DE80B43906BF541CAF73A8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ampernet.com.br, DNS:ampernet.com.br

SHA-256 fingerprint

F9:1B:86:E2:35:CE:CC:42:3C:1D:2E:9D:E2:3A:03:FB:DB:09:03:F5:E7:94:0F:7A:56:89:51:06:3D:16:02:FB
Certificate extensions & PEM
authorityKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
subjectKeyIdentifier
23:4C:75:1E:44:E6:FF:A6:25:2C:65:B6:F0:DA:DE:39:03:5D:BB:D6
subjectAltName
DNS:*.ampernet.com.br, DNS:ampernet.com.br
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
crlDistributionPoints
Full Name: URI:http://cdp.thawte.com/ThawteTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.thawte.com CA Issuers - URI:http://cacerts.thawte.com/ThawteTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
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 : May 18 12:49:04.271 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:53:D3:5C:5C:70:E7:35:BC:52:86:CC:20: CF:A3:B5:53:44:4E:54:AE:E7:12:FB:FC:34:35:D3:A0: FB:EE:7B:28:02:21:00:CE:07:37:DF:D9:82:D4:DA:84: EE:FC:66:4D:92:B8:E9:31:0E:91:82:DD:1C:95:A2:C1: A5:EF:F6:EF:E1:BE:01 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 : May 18 12:49:04.221 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B9:0A:5E:7E:90:4E:33:D6:39:2B:49: F0:A7:45:F3:9A:3A:60:2D:17:88:6B:76:BC:94:A2:86: 55:7F:0C:0A:74:02:20:07:0B:63:9C:AE:FB:6D:B4:6D: B6:C8:E1:76:C7:2E:EB:0E:C6:FE:12:C1:D1:5E:96:A0: DE:55:96:8A:1B:BC:D6 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 : May 18 12:49:04.276 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:59:07:F8:AB:40:26:3C:2B:E1:D9:CB:1A: A5:A0:DA:85:F8:9B:2F:C8:2F:13:33:30:E4:9B:82:E4: 64:68:E2:7C:02:20:30:60:82:8E:F7:4E:2C:E1:4A:7F: 85:33:BB:FA:62:80:5C:96:A4:C0:91:10:8B:8A:BA:41: 29:58:B8:3F:B9:B0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-21T06:26:27+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:25+00:00
Expires
2027-11-02T12:24:25+00:00
Days remaining
377
Serial (hex)
090EE8C5DE5BFA62D2AE2FF7097C4857
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4B:CC:5E:23:4F:E8:1E:DE:4E:AF:88:3A:A1:9C:31:33:5B:0B:26:E8:5E:06:6B:99:45:E4:CB:61:53:EB:20:C2
Certificate extensions & PEM
subjectKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
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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