SSL/TLS Certificate Lookup

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

operun.de

SSL/TLS Certificate

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SSL/TLS Certificate for operun.de

Valid
Issued by (CA)
Let's Encrypt
Subject
operun.de
Valid from
Jul 2, 2026
Valid until
Sep 30, 2026 (71 days remaining)
Public key
EC 256-bit
Serial
0576078BF2B448CFAD74EA747919F6980EEC
SHA-256 fingerprint
DD:57:2A:B7:72:58:C4:25:A6:89:8E:21:29:76:D1:F7:E8:50:85:EF:71:F5:E7:C7:C0:2A:4D:FE:2D:E1:D3:BD
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
operun.de

Certificate Authority Authorization (CAA)

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