SSL/TLS Certificate Lookup

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

johner.de

SSL/TLS Certificate

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SSL/TLS Certificate for johner.de

Valid
Issued by (CA)
Sectigo Limited
Subject
*.johner.de
Valid from
May 11, 2026
Valid until
Nov 25, 2026 (128 days remaining)
Public key
RSA 2048-bit
Serial
1DCFC09460E59B9430A4118DEB7BC0B4
SHA-256 fingerprint
5A:54:B5:99:60:7F:79:32:EB:1A:E1:09:AB:A5:57:A9:C4:27:1D:6C:AC:B8:28:BB:9A:51:0B:21:52:1A:D4:03
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.johner.de, johner.de

Certificate Authority Authorization (CAA)

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