SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cte-sa.ch
SSL/TLS Certificate
SSL/TLS Certificate for cte-sa.ch
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- cte-sa.ch
- Valid from
- Jun 9, 2026
- Valid until
- Sep 7, 2026 (20 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054A4435A614063330C381C564403C6E55C8
- SHA-256 fingerprint
- ED:54:24:D9:A8:C4:45:B0:4D:A8:E5:B6:F9:47:48:42:48:19:3C:F5:09:C0:63:4F:19:BF:90:45:B8:66:F7:B5
- 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 Aug 7, 2026.
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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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