SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for alpar.ch

Self-signed
Issued by (CA)
s098.cyon.net
Subject
s098.cyon.net
Valid from
Dec 23, 2021
Valid until
Dec 23, 2022 (expired 1318 days ago)
Public key
RSA 4096-bit
Serial
4641F674CC466A9B526FA409FD835F46D9B82A91
SHA-256 fingerprint
35:A5:D3:4E:0F:B9:E1:E1:D1:58:25:60:93:B1:44:EB:87:CE:50:1F:23:DC:63:62:93:5C:7B:11:70:A0:37:78
Chain
s098.cyon.net

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 1, 2026.

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TLS certificate

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