SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
upc-point-one.ch
SSL/TLS Certificate
SSL/TLS Certificate for upc-point-one.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- upc-point-one.ch
- Valid from
- Jun 11, 2026
- Valid until
- Sep 9, 2026 (48 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0678003AEC132A8F09A09660E1AACDB330A5
- SHA-256 fingerprint
- BC:0A:F1:A8:F8:C0:D4:D4:C9:5F:50:0C:AB:C7:F7:34:F9:21:31:D2:0C:EA:DD:CF:EF:A5:6C:AB:84:47:21:8D
- 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
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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