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 cato.ch
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- zadmin2.zugernet.ch
- Valid from
- Jul 28, 2026
- Valid until
- Oct 26, 2026 (31 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054CEE9FE331EE267391E688D588FB7F538B
- SHA-256 fingerprint
- 15:7B:91:8D:BB:A6:5C:8C:83:A1:68:B3:E1:A7:3A:49:95:FF:A0:33:36:C9:21:2F:B0:79:A1:81:76:C6:21:2D
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 7, 2026.
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DNS changes
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TLS certificate
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