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

altronics.com.au · 20.55.103.191:443

Verified
The certificate expires within 30 days.

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

Subject
C=AU ST=Western Australia L=Northbridge O=ALTRONIC DISTRIBUTORS PTY LTD CN=*.altronics.com.au
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-04-21T00:00:00+00:00
Expires
2026-11-05T23:59:59+00:00
Days remaining
8
Serial (hex)
0C1DB83059668F7C4CA0B88D53915225
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.altronics.com.au, DNS:altronics.com.au

SHA-256 fingerprint

0E:00:F5:28:80:20:17:2F:37:24:86:78:E6:C7:E1:E9:3B:EC:FD:88:B4:76:0D:9B:57:D5:63:31:1D:C0:27:01
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
5C:BC:34:34:DC:4B:B3:D2:58:47:57:10:BC:5F:31:D6:3C:DE:0D:97
subjectAltName
DNS:*.altronics.com.au, DNS:altronics.com.au
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 : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Apr 21 04:11:19.788 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D6:C5:72:F4:24:3D:B5:6F:0A:E6:53: AF:A9:47:8F:A9:06:0E:40:3E:2C:5E:DF:5A:63:0C:89: CB:80:FC:1F:8F:02:20:66:7D:D5:1E:B8:38:F3:0D:CA: 33:A3:9D:12:E9:EB:3D:8C:29:AB:F8:D7:B1:C0:83:37: A1:53:E8:3B:EE:4C:14 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Apr 21 04:11:19.936 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:8C:F6:59:AB:C1:96:9B:07:B8:9E:CF: F9:22:D0:7A:49:4F:19:FE:51:62:4D:59:38:97:95:1F: B9:20:8C:EE:F9:02:21:00:ED:C9:9B:3D:98:CF:25:0B: 2A:37:A7:0C:28:23:90:19:AD:EE:3C:7D:34:A9:35:B1: DF:BE:ED:5D:7E:72:9A:97 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Apr 21 04:11:19.800 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:9D:AD:73:9B:14:E1:3D:BC:73:F9:14: B1:AD:9B:3F:84:21:0E:05:11:F3:0D:94:F1:7D:CC:00: 20:C2:69:55:CF:02:20:66:28:E0:7D:44:5A:5F:13:A6: C7:3F:67:CA:BA:04:80:23:A6:B8:82:7A:9F:7B:C4:BD: C4:48:E5:5C:68:A5:06
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-28T01:39:04+00:00

Server-presented chain · 1 additional certificate

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
370
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-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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