SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
robert-voigt-stiftung.de
SSL/TLS Certificate
SSL/TLS Certificate for robert-voigt-stiftung.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zinq-technologie.com
- Valid from
- Aug 27, 2026
- Valid until
- Nov 25, 2026 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05348D3D4C55FC7FDDE36129E5B1065649C2
- SHA-256 fingerprint
- 5C:87:1F:65:55:C0:E9:46:92:E5:73:77:41:47:5B:70:EF:65:64:38:25:23:78:C7:88:32:75:B0:74:EC:53:ED
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Aug 29, 2026.
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TLS certificate
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