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

smartcom.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=smartcom.com.br
Issuer
C=US O=Let's Encrypt CN=YE2
Valid from
2026-11-03T11:23:20+00:00
Expires
2027-02-01T11:23:19+00:00
Days remaining
83
Serial (hex)
06459DC6DFC6C31395873FCB9220DA865CC2
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:smartcom.com.br, DNS:www.smartcom.com.br

SHA-256 fingerprint

DB:F5:8A:07:F3:6D:B6:A2:D1:B6:41:FE:96:12:B5:53:18:AF:45:00:20:56:7C:E1:DF:8C:8E:B4:6A:FA:27:67
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
27:F8:0C:1D:16:8D:2A:FF:F4:F8:16:FF:F4:CF:78:3E:91:BA:4D:35
authorityKeyIdentifier
B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
CA Issuers - URI:http://ye2.i.lencr.org/
subjectAltName
DNS:smartcom.com.br, DNS:www.smartcom.com.br
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://ye2.c.lencr.org/67.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Nov 3 12:21:51.026 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:58:C6:24:C0:80:F4:1A:46:30:9C:39:5E: 9D:3C:3A:95:61:A4:6C:86:1A:DE:36:C2:A0:F0:ED:97: D3:83:B5:01:02:20:40:9F:3A:64:A9:D8:2A:8A:51:CD: 03:8C:66:FA:28:AD:B4:D9:E0:12:81:BE:3A:4D:DB:1D: 07:E6:6C:A0:C9:97 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Nov 3 12:21:51.148 2026 GMT Extensions: 00:00:05:00:36:ED:EA:7A Signature : ecdsa-with-SHA256 30:45:02:20:14:E2:0F:5D:C7:E7:43:67:3C:F5:1B:74: 6D:36:C2:17:A8:29:FE:A7:D3:A1:0C:41:32:7E:94:DD: 59:1F:36:6B:02:21:00:F7:E6:04:06:30:34:62:4C:6B: 8E:A5:35:FC:10:61:C7:0E:ED:DA:E1:85:0A:09:21:AC: 5B:A7:29:61:7B:B9:CF
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-10T08:14:21+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YE2
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
662
Serial (hex)
4DF3B15DD6C0784C507CD37B58E6F115
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

97:65:8D:E8:C6:8D:FA:98:AC:E1:E5:02:8A:63:D5:4A:1A:AE:91:1B:3E:21:47:10:76:C6:85:0C:D0:8C:BA:B4
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
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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