SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oeko-sack.ch
SSL/TLS Certificate
SSL/TLS Certificate for oeko-sack.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oeko-sack.ch
- Valid from
- Jul 31, 2026
- Valid until
- Oct 29, 2026 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05857E512C22C6FD155F5D647A9306C8C716
- SHA-256 fingerprint
- 3B:8D:73:EF:D4:EE:CA:AC:C8:3C:B9:1A:10:3E:E2:03:A2:C6:43:F1:E0:80:51:6F:43:B0:35:53:1D:D5:B4:7C
- Chain
- YR1 → 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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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