SSL/TLS Certificate Lookup

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

osy.com

SSL/TLS Certificate

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SSL/TLS Certificate for osy.com

Self-signed

Issued by (CA): osy.com.df-556528.dummy
Subject: osy.com.df-556528.dummy
Valid from: Dec 20, 2025
Valid until: Dec 20, 2026 (151 days remaining)
Public key: RSA 2048-bit
Serial: 014910F13C
SHA-256 fingerprint: 98:51:07:31:76:61:D5:D7:BA:4C:3F:EB:84:AC:D2:4D:5E:74:22:78:7E:E6:02:1E:91:E2:AA:6F:1B:05:C5:2B
Chain: osy.com.df-556528.dummy

Subject Alternative Names (11)

autodiscover.osy.com, cpanel.osy.com, cpcalendars.osy.com, cpcontacts.osy.com, mail.osy.com, osy.com, osy.com.df-556528.dummy, webdisk.osy.com, webmail.osy.com, www.osy.com, www.osy.com.df-556528.dummy

Certificate Authority Authorization (CAA)

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