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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

aiu3.net · 13.107.213.40:443

Verified
The certificate expires within 30 days.

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

Subject
CN=aiu3.net
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-05-15T00:00:00+00:00
Expires
2026-11-15T23:59:59+00:00
Days remaining
8
Serial (hex)
0E2F917538810A6D51302BA23EE79AF4
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:aiu3.net

SHA-256 fingerprint

99:55:97:4B:28:D4:9D:E6:53:09:69:89:40:30:4E:FE:F5:35:B6:87:82:E1:36:EB:4A:83:EA:4E:40:CC:A6:AE
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
3D:C8:5C:38:DE:27:1C:9F:F3:5F:DE:9F:B7:8C:CC:46:5F:72:34:42
subjectAltName
DNS:aiu3.net
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client 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 : May 15 15:44:56.758 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:32:95:6E:0B:0B:2E:EB:30:FF:00:38:A1: 07:DC:CC:FA:30:FC:BF:EA:65:05:E9:A3:97:24:8E:C8: D0:D6:B5:3C:02:20:04:44:7B:99:F2:BF:DA:FD:4B:B8: 96:B6:5B:E4:3A:29:6F:6D:8A:3B:49:A7:F2:BC:32:9D: 0D:2E:83:2B:03:C5 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 : May 15 15:44:56.717 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E4:51:5C:82:E6:0E:9D:A5:6D:95:67: 6F:92:8C:3C:4E:46:06:DC:45:BC:48:41:61:7C:35:AE: 31:C4:A7:02:7A:02:20:06:20:D0:50:86:FD:38:79:31: 08:4E:64:26:FA:31:8D:84:2C:CB:E4:45:D0:5F:03:A9: 68:E0:A2:7D:33:F3:02 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 : May 15 15:44:56.770 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:80:F2:C6:F4:18:4C:03:CC:35:6C:F5: 9C:12:7A:F9:AA:E2:71:B5:F8:A5:9D:A3:B9:37:39:9A: 11:95:7A:3D:55:02:20:34:65:4B:51:77:63:A8:4D:5E: 5E:14:BE:D1:CB:E2:A7:C0:4C:FA:9C:8D:BB:07:4D:83: 73:BC:40:C3:62:CD:96
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-07T04:30:15+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
360
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
4087
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-----
MIIDjjCCAnagAwIBAgIQAzrx5qcRqaC7KGSxHQn65TANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xMzA4MDExMjAwMDBaFw0zODAxMTUxMjAwMDBaMGExCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xIDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IEcyMIIBIjANBgkqhkiG
9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuzfNNNx7a8myaJCtSnX/RrohCgiN9RlUyfuI
2/Ou8jqJkTx65qsGGmvPrC3oXgkkRLpimn7Wo6h+4FR1IAWsULecYxpsMNzaHxmx
1x7e/dfgy5SDN67sH0NO3Xss0r0upS/kqbitOtSZpLYl6ZtrAGCSYP9PIUkY92eQ
q2EGnI/yuum06ZIya7XzV+hdG82MHauVBJVJ8zUtluNJbd134/tJS7SsVQepj5Wz
tCO7TG1F8PapspUwtP1MVYwnSlcUfIKdzXOS0xZKBgyMUNGPHgm+F6HmIcr9g+UQ
vIOlCsRnKPZzFBQ9RnbDhxSJITRNrw9FDKZJobq7nMWxM4MphQIDAQABo0IwQDAP
BgNVHRMBAf8EBTADAQH/MA4GA1UdDwEB/wQEAwIBhjAdBgNVHQ4EFgQUTiJUIBiV
5uNu5g/6+rkS7QYXjzkwDQYJKoZIhvcNAQELBQADggEBAGBnKJRvDkhj6zHd6mcY
1Yl9PMWLSn/pvtsrF9+wX3N3KjITOYFnQoQj8kVnNeyIv/iPsGEMNKSuIEyExtv4
NeF22d+mQrvHRAiGfzZ0JFrabA0UWTW98kndth/Jsw1HKj2ZL7tcu7XUIOGZX1NG
Fdtom/DzMNU+MeKNhJ7jitralj41E6Vf8PlwUHBHQRFXGU7Aj64GxJUTFy8bJZ91
8rGOmaFvE7FBcf6IKshPECBV1/MUReXgRPTqh5Uykw7+U0b6LJ3/iyK5S9kJRaTe
pLiaWN0bfVKfjllDiIGknibVb63dDcY3fe0Dkhvld1927jyNxF1WW6LZZm6zNTfl
MrY=
-----END CERTIFICATE-----

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

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