SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
q-tec-ag.ch
SSL/TLS Certificate
SSL/TLS Certificate for q-tec-ag.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- q-tec-ag.ch
- Valid from
- Sep 12, 2026
- Valid until
- Dec 11, 2026 (31 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06A048401592B1C583AB556E244167454EE3
- SHA-256 fingerprint
- 4E:8E:89:11:8A:2C:A6:26:96:11:9C:27:45:CD:9F:08:79:FD:51:43:4B:B5:DA:CB:26:03:F0:0D:B2:DF:34:D9
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 6, 2026.
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Uptime
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DNS changes
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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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