SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
plakatkalender.com
SSL/TLS Certificate
SSL/TLS Certificate for plakatkalender.com
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- www.buehner-kalender.de
- Valid from
- Dec 1, 2023
- Valid until
- Oct 31, 2024 (expired 695 days ago)
- Public key
- RSA 2048-bit
- Serial
- 56DB296564BAC7286F433B639C096086
- SHA-256 fingerprint
- 90:DE:36:5C:65:23:B2:9E:3A:07:59:65:8C:32:AA:39:2E:11:F3:61:D2:99:30:4E:B1:FE:05:BE:B2:7D:CA:BD
- Chain
- Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority
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 Sep 19, 2026.
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TLS certificate
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