SSL/TLS Certificate Lookup

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

sndtek.de

SSL/TLS Certificate

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SSL/TLS Certificate for sndtek.de

Expiring soon
Issued by (CA)
Let's Encrypt
Subject
sndtek.de
Valid from
May 1, 2026
Valid until
Jul 30, 2026 (10 days remaining)
Public key
RSA 2048-bit
Serial
05E21AAF42839DAB9CD6C4954D5BD1E4DFD7
SHA-256 fingerprint
27:AF:8D:97:EA:08:A3:C4:3C:E3:C2:A4:8F:70:70:C9:0A:A8:5C:F8:A1:DD:B9:92:EA:D6:80:59:CD:E6:33:AD
Chain
R12 → ISRG Root X1
Subject Alternative Names (1)
sndtek.de

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).