SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
externat-glacis.ch
SSL/TLS Certificate
SSL/TLS Certificate for externat-glacis.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- externat-glacis.ch
- Valid from
- Jul 29, 2026
- Valid until
- Oct 27, 2026 (79 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06E0AEA29D42BB4EAEB1BB6CF75F9342CF63
- SHA-256 fingerprint
- 2F:75:2F:E1:FA:1E:E2:FD:F6:22:D1:A6:E1:C6:63:5A:0C:EB:1E:64:62:D8:65:1B:EA:B5:87:7F:B1:6E:8C:A0
- 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
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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