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 bau-nachhaltig.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
www.bau-n.ch
Valid from
Oct 16, 2026
Valid until
Jan 14, 2027 (64 days remaining)
Public key
RSA 4096-bit
Serial
06DCE284C94D49E71C9228B467787FEE0FDA
SHA-256 fingerprint
F0:DC:59:C0:67:6B:3D:43:8D:AE:54:7C:1B:CD:A8:D9:68:D9:24:37:16:3E:EE:4A:7F:16:B9:BB:23:09:30:A6
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (4)
bau-n.ch, bau-nachhaltig.ch, www.bau-n.ch, www.bau-nachhaltig.ch

Certificate Authority Authorization (CAA)

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TLS certificate

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