SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lyceum-alpinum.ch
SSL/TLS Certificate
SSL/TLS Certificate for lyceum-alpinum.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lyceum-alpinum.ch
- Valid from
- Jul 11, 2026
- Valid until
- Oct 9, 2026 (50 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0505E8B0F32515DDEF383240B91286E7F950
- SHA-256 fingerprint
- 17:E8:B2:97:D8:D0:A1:3A:1F:1B:E1:A8:99:0C:BF:ED:AB:83:71:A0:93:5B:E3:00:C6:3F:8A:22:94:D8:13:7F
- 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.
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Uptime
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DNS changes
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TLS certificate
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