SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for hinzu.ch
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- hinzu.ch
- Valid from
- Sep 26, 2024
- Valid until
- Dec 25, 2024 (expired 601 days ago)
- Public key
- RSA 2048-bit
- Serial
- 03D9FEB34163369FCA5841DE4520222F04E9
- SHA-256 fingerprint
- C5:EB:CB:8E:DE:62:2A:BA:39:81:6D:CA:33:5E:92:C5:8D:0A:9E:2E:20:A2:2D:34:71:58:48:3F:CD:66:65:DB
- Chain
- R11 → 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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