SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

ou.edu

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for ou.edu

Valid
Issued by (CA)
Internet2
Subject
ou.edu
Valid from
Mar 9, 2026
Valid until
Apr 9, 2027 (263 days remaining)
Public key
RSA 2048-bit
Serial
45B0229C2DCBF5C7508380A54DB3C4B1
SHA-256 fingerprint
D5:84:07:EC:CB:6D:D1:CF:77:A1:16:B8:4F:E8:65:95:A5:F9:E8:E2:69:13:48:E4:A7:5A:F9:DE:E6:D6:DA:36
Chain
InCommon RSA Server CA 2 → USERTrust RSA Certification Authority → AAA Certificate Services
Subject Alternative Names (2)
*.ou.edu, ou.edu

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.