SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zurtec.ch
SSL/TLS Certificate
SSL/TLS Certificate for zurtec.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zurtec.ch
- Valid from
- Jun 10, 2026
- Valid until
- Sep 8, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 062FA56645C19B5F2969B61B63EEFC99B450
- SHA-256 fingerprint
- 01:B6:B0:CB:6F:8E:8B:B2:C9:34:E5:CD:93:10:88:5D:19:1E:D0:75:5D:80:31:0E:96:FA:D0:67:D2:E0:EB:A1
- 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.
This certificate has been served since Aug 2, 2026.
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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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