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

TLSv1.3

alares.tec.br · 187.18.187.48:443

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=alares.tec.br
Issuer
C=US O=Let's Encrypt CN=R11
Valid from
2024-07-26T21:57:28+00:00
Expires
2024-10-24T21:57:27+00:00
Days remaining
-723
Serial (hex)
031CDC40B8D5BEC9881AD4CDE8C636E80E2E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:alares.tec.br

SHA-256 fingerprint

0C:F1:35:A6:4E:DC:AE:C9:4B:05:95:68:94:F0:6F:2F:49:C5:7D:3F:2B:75:A7:7A:66:E9:4B:F2:FA:95:E1:F5
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
AD:97:5B:12:46:74:3A:13:3A:AA:06:95:EA:49:70:A2:FF:6F:25:27
authorityKeyIdentifier
C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
OCSP - URI:http://r11.o.lencr.org CA Issuers - URI:http://r11.i.lencr.org/
subjectAltName
DNS:alares.tec.br
certificatePolicies
Policy: 2.23.140.1.2.1
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2: 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B Timestamp : Jul 26 22:57:28.638 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:98:02:FE:44:C5:11:CB:F3:D0:B6:C5: 0C:08:1F:93:02:82:02:07:37:E2:9E:F1:67:B9:ED:E0: BD:94:F3:AF:7B:02:21:00:9B:6B:52:F7:FC:F6:B4:48: BA:D2:F9:AC:84:A8:36:1A:21:49:D9:85:62:49:BB:81: A1:0D:C5:32:2F:D7:E0:43 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB: 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73 Timestamp : Jul 26 22:57:28.633 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:0C:58:24:F3:4B:CE:59:D0:F8:A5:A6:4C: DE:EE:C0:69:1F:3D:7D:31:14:66:C6:8C:54:9D:EE:2B: 67:0D:4D:7B:02:21:00:9E:2C:27:42:D7:E4:42:07:0F: 2E:23:8D:E6:2F:65:D4:3F:F8:F9:27:95:0B:83:A5:AB: 6C:1D:B6:29:AE:F7:0E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-17T04:53:18+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R11
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
146
Serial (hex)
8A7D3E13D62F30EF2386BD29076B34F8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

59:1E:9C:E6:C8:63:D3:A0:79:E9:FA:BE:14:78:C7:33:9A:26:B2:12:69:DD:E7:95:21:13:61:02:4A:E3:1A:44
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.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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