SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cuhkmc.hk
SSL/TLS Certificate
SSL/TLS Certificate for cuhkmc.hk
Valid- Issued by (CA)
- Hongkong Post
- Subject
- *.cuhkmc.hk
- Valid from
- Oct 13, 2026
- Valid until
- Apr 30, 2027 (166 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 4202E0E427334E62ED4C2B8EDD224A87F841DE17
- SHA-256 fingerprint
- 6E:9C:B5:12:05:C0:6E:49:CE:74:64:53:5E:B4:42:97:75:49:13:5C:64:62:E1:92:F1:18:DC:AA:3C:97:FD:AB
- Chain
- Hongkong Post e-Cert SSL CA 3 - 17 → Hongkong Post Root CA 3
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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