SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
horn-architekten.de
SSL/TLS Certificate
SSL/TLS Certificate for horn-architekten.de
Self-signed- Issued by (CA)
- horn-architekten.de.df-590288.dummy
- Subject
- horn-architekten.de.df-590288.dummy
- Valid from
- Jun 7, 2025
- Valid until
- Jun 7, 2026 (expired 138 days ago)
- Public key
- RSA 2048-bit
- Serial
- D260A38D
- SHA-256 fingerprint
- 2A:E7:93:70:BC:A3:9B:28:16:49:97:1B:8F:96:4B:09:AE:9B:CC:29:47:00:A5:C3:E4:6F:D4:57:35:90:B8:81
- Chain
- horn-architekten.de.df-590288.dummy
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
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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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