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

oakland.edu · 104.18.15.180:443

Verified

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

Subject
C=US ST=Michigan L=Rochester O=Oakland University CN=*.oakland.edu
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 OV TLS CA 2025
Valid from
2026-10-29T21:12:02+00:00
Expires
2027-05-16T14:16:41+00:00
Days remaining
190
Serial (hex)
7B21AE214889DB5CA46530D2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.oakland.edu, DNS:oakland.edu

SHA-256 fingerprint

D4:1A:26:14:B3:2D:D2:A4:3C:72:36:49:50:A1:FC:74:A3:A5:96:22:51:48:FF:52:9E:74:30:92:03:D6:97:1D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr46ovtlsca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr46ovtlsca2025
certificatePolicies
Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr46ovtlsca2025.crl
subjectAltName
DNS:*.oakland.edu, DNS:oakland.edu
authorityKeyIdentifier
69:74:3E:AF:C3:5B:01:95:49:EE:14:41:5A:93:FA:B1:30:98:DA:A2
extendedKeyUsage
TLS Web Server Authentication
subjectKeyIdentifier
E9:AF:A8:AC:39:7B:3C:B9:1D:42:B0:85:19:3E:B1:92:7D:42:51:FB
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 29 21:12:05.734 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:8B:1C:9B:C6:29:1F:39:1A:38:C9:3A: 90:FD:57:FD:B8:04:04:15:E2:94:2B:39:11:AD:05:EE: 29:AC:95:47:17:02:21:00:F0:EE:9F:B9:CF:C3:DE:A0: D8:06:70:B2:11:A0:15:19:30:81:3F:B2:59:09:0E:60: 93:C5:22:C6:7A:0E:8B:1D 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 : Oct 29 21:12:05.508 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:22:27:97:50:A8:B9:52:3A:E7:43:61:06: B1:6C:8A:C2:F2:CE:92:E7:90:5F:08:27:89:8E:4C:BF: 9F:41:57:6D:02:21:00:DF:70:A8:31:CE:A9:A5:AB:DD: 81:B9:C9:AC:35:D0:68:44:B6:CA:77:C8:91:6E:7A:20: 04:59:B6:60:17:4F:E2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Oct 29 21:12:05.565 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B0:B1:3F:93:78:7C:07:DC:16:75:DA: C3:C6:06:7E:FC:67:07:1F:0B:A3:07:E9:15:C7:17:3B: 39:DC:F9:AC:90:02:20:04:82:93:E6:32:EF:11:90:FE: 0B:DF:3A:52:3A:61:DC:51:27:E4:F9:73:77:DD:4F:9E: BD:0E:77:44:74:E9:BA
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-06T14:43:09+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 OV TLS CA 2025
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2025-09-17T02:55:56+00:00
Expires
2029-06-23T00:00:00+00:00
Days remaining
959
Serial (hex)
84435890836F67394182CB9C9A5DC99F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D1:60:E2:DE:4E:56:CB:10:B6:6C:1C:B0:AD:CB:79:CF:93:C7:8D:CD:9D:B3:0C:20:18:22:02:62:C0:40:63:F9
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
69:74:3E:AF:C3:5B:01:95:49:EE:14:41:5A:93:FA:B1:30:98:DA:A2
authorityKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr46 CA Issuers - URI:http://secure.globalsign.com/cacert/rootr46.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/rootr46.crl
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 1.3.6.1.4.1.4146.10.1.2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2019-11-20T00:00:00+00:00
Expires
2028-01-28T00:00:00+00:00
Days remaining
447
Serial (hex)
75A8BAD68321350B5B0BAC34E1CE389F
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A5:E3:3C:28:E3:01:3A:71:F5:F7:60:AE:3B:16:59:50:90:04:3D:2E:C5:20:9E:C5:29:03:C4:FB:AD:25:8D:AD
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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

Registration / WHOIS →DNS records →