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

aarnet.edu.au · 202.158.207.3:443

Verified

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

Subject
C=AU ST=New South Wales L=Chatswood O=AARNET PTY LTD CN=aarnet.edu.au
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-06-12T00:00:00+00:00
Expires
2026-12-27T23:59:59+00:00
Days remaining
96
Serial (hex)
0372F7F97E778D7DBA1FECA66E9236D5
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:aarnet.edu.au, DNS:aarnet.net.au, DNS:*.aarnet.edu.au, DNS:*.aarnet.net.au, DNS:aarnet.au, DNS:*.aarnet.au

SHA-256 fingerprint

F7:18:69:75:86:E1:E4:B4:8B:29:B3:12:86:C8:4F:2E:48:3C:C4:2C:CC:34:C5:90:78:D7:C3:6E:9C:68:4F:B4
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
4D:7C:2C:3E:92:84:5B:48:21:CF:4C:C2:75:D0:6B:DC:25:C0:45:74
subjectAltName
DNS:aarnet.edu.au, DNS:aarnet.net.au, DNS:*.aarnet.edu.au, DNS:*.aarnet.net.au, DNS:aarnet.au, DNS:*.aarnet.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://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.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 : Jun 12 17:38:42.770 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:59:7C:AC:6B:9F:3B:F0:5E:B5:67:3E:FB: 7A:2D:6A:54:09:12:54:80:5F:4E:77:65:31:17:C9:15: 2F:C8:DD:F4:02:20:2C:D0:C3:59:FA:53:94:2F:FD:CF: 5C:D5:5C:A9:91:50:C6:05:93:42:07:F7:0E:26:0D:B0: 90:3A:6F:E3:93:58 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 : Jun 12 17:38:42.723 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:48:D4:B0:60:99:8B:01:D3:6F:F0:2A:D9: 63:D2:C7:B7:E6:5A:A5:49:7B:C1:5A:EE:1F:76:01:1C: EC:FD:46:D6:02:21:00:BC:2C:B9:45:2C:06:AF:F5:E6: D9:D8:A9:81:F7:08:6C:EA:DF:93:5A:90:5D:45:01:39: A0:06:8E:87:A0:61:5F 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 : Jun 12 17:38:42.751 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:EE:30:6A:09:2B:24:D9:40:04:86:0F: 36:69:9E:C5:87:95:18:C0:8D:83:09:AA:52:B1:4F:44: 57:E9:74:26:42:02:20:6F:BB:0C:15:63:77:FC:30:79: DA:0F:EB:E5:B9:95:B0:28:94:C0:AC:D3:AB:66:41:FF: 12:FE:20:77:26:61:C1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-22T07:27:29+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1649
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
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
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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
4133
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.

View certificate JSON

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