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 kelsen.de

Valid
Issued by (CA)
Let's Encrypt
Subject
kelsen.de
Valid from
Jun 18, 2026
Valid until
Sep 16, 2026 (56 days remaining)
Public key
RSA 4096-bit
Serial
06CEA6D5EB52E71F2923E673128289D5466E
SHA-256 fingerprint
14:79:C3:6E:E9:BC:B9:1D:4A:BB:7D:24:FF:43:44:A7:66:B5:35:DA:11:60:8F:88:8F:7B:6D:F4:38:9C:5C:68
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
kelsen.de, www.kelsen.de

Certificate Authority Authorization (CAA)

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