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

geoklock.com.br · 186.202.135.240:443

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=geoklock.com.br
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-22T00:14:09+00:00
Expires
2026-12-21T00:14:08+00:00
Days remaining
50
Serial (hex)
067EB1CC70A75E8478C942429AD01AD8C02A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:geoklock.com.br, DNS:www.geoklock.com.br

SHA-256 fingerprint

41:E5:C7:31:A3:34:25:A3:AA:BB:57:06:73:8F:4C:D0:03:C2:57:96:9C:FC:17:DC:17:D5:90:C7:8F:46:62:73
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
BE:2B:01:62:9C:F5:BE:CC:35:43:B7:BA:40:95:87:A2:D9:EE:EB:44
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:geoklock.com.br, DNS:www.geoklock.com.br
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/43.crl
ct_precert_scts
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 : Sep 22 01:12:39.845 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CE:D6:69:75:83:6D:A2:35:4D:C1:44: 7F:30:17:6B:C3:F0:FB:70:55:72:17:2C:95:28:3B:B1: 4B:8A:FB:26:57:02:20:25:65:9D:92:C0:A8:6B:3A:44: 95:99:38:41:C9:09:07:D8:7D:54:AF:85:D7:0A:AA:B3: ED:0B:D7:8E:5A:D1:99 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 22 01:12:40.363 2026 GMT Extensions: 00:00:05:00:43:C1:A1:57 Signature : ecdsa-with-SHA256 30:44:02:20:44:D7:23:78:BE:97:98:5B:04:77:A3:61: 7D:7D:09:CB:10:24:7D:44:32:20:45:5A:0B:EC:AE:28: 92:3B:6A:6B:02:20:01:00:3D:BF:E4:2D:03:BE:FD:45: 66:9E:39:59:D1:CF:84:14:C5:57:80:90:2E:F8:CD:42: 9E:B1:AB:B7:3B:A2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-31T12:09:39+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
672
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----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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