SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sao-nat.ch
SSL/TLS Certificate
SSL/TLS Certificate for sao-nat.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.sao-nat.ch
- Valid from
- Aug 2, 2026
- Valid until
- Oct 31, 2026 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0577AB1CAA89FA40F3F6532462C2A81F8AB9
- SHA-256 fingerprint
- BF:94:FF:B9:41:DB:2B:19:90:33:16:C2:53:7D:30:87:5C:4B:33:29:27:94:7D:77:8C:47:04:37:7A:84:B2:D7
- 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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This is today's certificate. Turn on monitoring and we'll watch sao-nat.ch continuously, notifying you the moment anything moves across all three signals:
Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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