SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
vhs-oberaargau.ch
SSL/TLS Certificate
SSL/TLS Certificate for vhs-oberaargau.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- vhs-oberaargau.ch
- Valid from
- Aug 10, 2026
- Valid until
- Nov 8, 2026 (58 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06A66722A429485D2E34CCCA8BBCB07ADBB0
- SHA-256 fingerprint
- F3:0A:65:30:A7:51:79:64:27:04:D6:84:52:C7:F9:BE:BF:74:E2:B5:65:04:DD:F4:88:F2:87:74:79:4F:B1:BA
- 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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