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

gerpro.com.br · 187.0.197.251:443

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

Certificate verification failed

Subject
CN=*.gerpro.com.br
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2026-06-08T21:09:29+00:00
Expires
2026-12-24T21:09:29+00:00
Days remaining
48
Serial (hex)
46E6B4E3D2CC67A707939EDB
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.gerpro.com.br, DNS:gerpro.com.br

SHA-256 fingerprint

1B:F3:6B:39:63:DA:FB:68:1B:C8:74:85:74:87:77:EB:03:99:FA:AB:2E:9A:C7:5F:1E:73:8B:41:59:9C:52:B4
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:*.gerpro.com.br, DNS:gerpro.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
7C:FF:0B:D0:F4:6C:DC:E3:AB:EE:6E:6F:89:E4:0E:3C:64:A7:80:99
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Jun 8 21:09:32.780 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:70:19:DF:80:FB:5E:D7:4D:2A:08:6B:0B: EC:5B:D4:15:CA:A8:37:B4:BB:6A:6D:60:90:74:36:8A: D5:F9:54:EC:02:20:4E:8A:05:B0:CC:3B:5A:8F:49:34: 6C:7B:9F:2C:E6:92:A2:B2:8C:D8:C9:24:B4:79:20:02: F9:57:45:4E:E0:3F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Jun 8 21:09:32.773 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6B:8C:5D:F8:22:56:7B:7E:CF:52:F9:F9: CE:50:1A:BD:45:01:2C:27:64:E2:34:BB:4C:51:38:09: 60:CE:F2:33:02:20:35:D5:3D:20:F4:E5:1C:32:8E:3C: AF:92:37:52:5D:AA:E1:36:9E:00:81:05:BA:37:2C:B5: 5A:0B:83:16:D3:4C 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 8 21:09:32.974 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5D:82:86:38:87:EA:EC:59:4D:91:14:14: 09:8C:EC:A5:BD:04:C3:35:85:4D:F9:79:CB:EC:FE:CD: 25:D2:30:54:02:21:00:F9:0D:8E:CA:E4:B2:88:1C:8A: 86:E1:B0:36:47:0E:63:32:30:9D:53:19:48:7A:EB:7A: FE:46:41:6B:A3:48:08
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-06T11:20:11+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=AlphaSSL CA - SHA256 - G4
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2022-10-12T03:49:43+00:00
Expires
2027-10-12T00:00:00+00:00
Days remaining
339
Serial (hex)
7D4D42A92B431D7E6453E7C19A8D5877
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

7C:4E:90:20:7B:2B:7C:AE:C0:80:42:6C:C4:69:90:8C:B2:7B:92:5E:E3:B1:C9:99:C2:2B:85:68:81:2F:DA:8C
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
4F:CB:AC:A8:C2:EF:AB:DD:83:6F:6B:BF:CE:98:3D:5C:58:25:76:15
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr1 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r1.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root.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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