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

alcans.com.br · 177.74.186.45:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=BR ST=São Paulo L=CAJURU O=ALCANS TELECOM LTDA CN=*.alcans.com.br
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-08-13T00:00:00+00:00
Expires
2027-02-27T23:59:59+00:00
Days remaining
140
Serial (hex)
0B78EEE676324640074194595D25C880
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.alcans.com.br, DNS:alcans.com.br

SHA-256 fingerprint

96:F1:4B:DE:85:78:4F:19:94:43:9B:64:76:13:79:25:57:B6:B9:1D:48:4C:4A:5E:41:70:08:02:FC:C8:17:FD
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
AF:AC:61:72:D9:71:F0:2C:01:5F:DD:CB:6A:92:56:EF:0E:E3:88:67
subjectAltName
DNS:*.alcans.com.br, DNS:alcans.com.br
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Aug 13 13:57:59.139 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DA:95:D6:A8:51:1C:18:26:6A:79:1F: D2:F4:0E:AA:04:A5:B9:F2:4D:C7:89:3E:ED:7B:DA:0A: 20:60:70:EE:13:02:20:10:38:AC:CD:2F:6C:C7:55:E8: DF:3D:7D:81:FD:AC:D1:69:87:EC:FA:06:16:E4:F6:BE: 71:9D:44:AE:A0:2F:98 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 : Aug 13 13:57:59.101 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:33:DF:EC:F7:A3:EE:04:EE:DC:9E:01:28: 27:EB:C8:67:15:60:AE:F4:CB:52:F7:8B:37:80:78:8B: A1:55:1F:9E:02:21:00:BD:2F:AA:71:E5:9F:5B:A3:EC: 82:D6:FB:1C:15:8A:54:BE:98:2D:2B:43:9D:40:61:C1: 50:62:DF:9B:DF:9E:07 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Aug 13 13:57:59.177 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A2:57:56:38:B6:BD:D5:DB:A2:6B:17: 6B:BC:B2:52:E5:31:EA:55:6E:C7:74:B8:06:4E:15:1D: 2C:3D:ED:5A:61:02:20:2E:01:B3:C1:F0:84:D7:7E:5D: 78:FB:55:98:C8:7B:35:C3:1C:9B:B2:BA:27:F0:26:C9: DE:20:E9:44:92:43:E7
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-10T19:35:05+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
387
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4114
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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.

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