SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
optum-au.com
SSL/TLS Certificate
SSL/TLS Certificate for optum-au.com
Hostname mismatch- Issued by (CA)
- Sectigo Limited
- Subject
- www.optum.com
- Valid from
- May 13, 2026
- Valid until
- Nov 27, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- F1DA4FA7E5CBFC9DF5582900776B8489
- SHA-256 fingerprint
- D3:24:6B:A2:7C:97:05:BF:4F:B6:9C:13:3E:2F:F0:56:36:F7:05:D0:65:9E:4E:A8:FE:30:F9:37:B4:86:1B:98
- Chain
- Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 25, 2026.
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Uptime
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DNS changes
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TLS certificate
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