SSL/TLS Certificate Lookup

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

kontech.de

SSL/TLS Certificate

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SSL/TLS Certificate for kontech.de

Valid
Issued by (CA)
Let's Encrypt
Subject
kontech.de
Valid from
Jul 11, 2026
Valid until
Oct 9, 2026 (80 days remaining)
Public key
RSA 4096-bit
Serial
057C411988DB8A7B2E11062D26ADDD488AB9
SHA-256 fingerprint
4E:F4:9E:40:2C:35:93:35:C0:D8:9D:D9:5E:1D:90:08:47:3F:2C:97:C4:26:89:24:D7:8F:62:4E:8F:D2:F2:35
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
kontech.de, www.kontech.de

Certificate Authority Authorization (CAA)

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