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

classic.com.br · 200.160.2.95:443

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=classic.com.br
Issuer
C=US O=Let's Encrypt CN=YE1
Valid from
2026-10-27T07:36:45+00:00
Expires
2027-01-25T07:36:44+00:00
Days remaining
85
Serial (hex)
06932573B1C75FEBBD5D97E17BD20E8643C6
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:classic.com.br, DNS:www.classic.com.br

SHA-256 fingerprint

6E:6D:BD:01:80:EA:F6:4F:08:4F:73:21:06:28:A4:FB:AB:95:D8:75:6D:A8:C2:C5:E8:57:F0:A2:D8:18:C5:17
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
5D:37:25:35:74:08:6D:9D:3B:FF:D2:14:1C:F1:CB:0F:BD:95:85:08
authorityKeyIdentifier
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityInfoAccess
CA Issuers - URI:http://ye1.i.lencr.org/
subjectAltName
DNS:classic.com.br, DNS:www.classic.com.br
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://ye1.c.lencr.org/71.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Oct 27 08:35:15.851 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:43:B5:9B:1B:4D:49:6E:99:25:5A:83:93: 16:40:23:D9:48:ED:1F:92:B2:54:61:BD:F2:E6:4B:9B: 13:37:70:7C:02:21:00:C8:E2:A0:BA:C7:1F:B1:D7:74: B0:5D:D6:C7:69:55:E8:0E:CE:31:05:13:07:42:2A:4F: CA:8A:60:9A:1C:27:9E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 27 08:35:16.096 2026 GMT Extensions: 00:00:05:00:15:FA:6A:6E Signature : ecdsa-with-SHA256 30:45:02:20:2A:6A:62:71:19:37:05:F1:35:5B:1C:BD: AA:AC:4E:6E:81:06:5A:97:5C:2C:D2:16:40:B8:AA:9B: 0A:32:BA:1F:02:21:00:DA:BB:C7:BB:22:94:75:49:FD: 01:44:36:17:3D:AF:9B:90:0D:B0:41:B5:AF:54:FF:B1: 57:0C:AE:AA:25:5E:9B
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-31T19:08:35+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YE1
Issuer
C=US O=ISRG CN=Root YE
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
672
Serial (hex)
5DDD70DD31F801C85C186A7A04B80AFE
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A2:37:2D:06:43:1E:97:16:36:5E:EE:D4:7E:C0:20:35:14:97:D1:82:FC:C0:38:E4:57:E5:81:68:A0:3C:AC:07
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityKeyIdentifier
A3:C8:26:5A:8E:A1:4C:D0:35:63:FC:9B:23:C8:3A:AE:56:F3:4F:56
authorityInfoAccess
CA Issuers - URI:http://ye.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://ye.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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