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 forst-aarau.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
forst-aarau.ch
Valid from
Oct 4, 2026
Valid until
Jan 2, 2027 (61 days remaining)
Public key
RSA 2048-bit
Serial
05DFF3B2BA1E1100D331E89E69429D0177A2
SHA-256 fingerprint
63:53:6F:93:C9:72:9B:C7:D2:E7:4F:47:91:FA:35:83:47:D3:8A:9A:1A:FB:2A:1F:79:36:18:7D:92:AD:23:32
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
forst-aarau.ch, www.forst-aarau.ch

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Oct 28, 2026.

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TLS certificate

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