SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for k-a-t.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.k-a-t.de
- Valid from
- Jan 26, 2026
- Valid until
- Feb 9, 2027 (110 days remaining)
- Public key
- RSA 2048-bit
- Serial
- B8E0B65937166431E8E6923E99189D06
- SHA-256 fingerprint
- 93:69:5A:92:FC:80:C8:A9:07:79:FA:AC:32:D6:4E:37:DE:0C:B0:98:E4:8B:F2:2F:F0:6D:66:2C:0D:80:11:31
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → 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 20, 2026.
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Uptime
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DNS changes
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TLS certificate
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