SSL/TLS Certificate Lookup

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

unico-hk.com

SSL/TLS Certificate

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SSL/TLS Certificate for unico-hk.com

Valid
Issued by (CA)
Let's Encrypt
Subject
mail.unico-hk.com
Valid from
Sep 4, 2026
Valid until
Dec 3, 2026 (43 days remaining)
Public key
RSA 2048-bit
Serial
05CE9C410533931D736D21E9F9A84C7AFF07
SHA-256 fingerprint
43:CB:5F:B3:A6:4D:7C:F8:53:99:83:77:99:83:36:6A:B7:FD:E0:E3:00:E2:75:5E:A3:AF:23:DC:31:D4:76:67
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (22)
autoconfig.greatfield.com.hk, autoconfig.unico-hk.com, autodiscover.greatfield.com.hk, autodiscover.unico-hk.com, cpanel.greatfield.com.hk, cpanel.unico-hk.com, cpcalendars.greatfield.com.hk, cpcalendars.unico-hk.com, cpcontacts.greatfield.com.hk, cpcontacts.unico-hk.com, greatfield.com.hk, mail.greatfield.com.hk, mail.unico-hk.com, unico-hk.com, unico-hk.greatfield.com.hk, webdisk.greatfield.com.hk, webdisk.unico-hk.com, webmail.greatfield.com.hk, webmail.unico-hk.com, www.greatfield.com.hk, www.unico-hk.com, www.unico-hk.greatfield.com.hk

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 11, 2026.

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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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