SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kb-siegerland.de
SSL/TLS Certificate
SSL/TLS Certificate for kb-siegerland.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.kb-siegerland.de
- Valid from
- Dec 16, 2025
- Valid until
- Jan 6, 2027 (168 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 20D69218ACA1B83745336186CEA3F1BD
- SHA-256 fingerprint
- 00:C8:DC:C0:43:72:62:65:08:48:7A:C9:2B:C5:F1:9E:69:C8:79:AF:99:EC:DF:38:31:50:06:90:27:3C:13:0A
- 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.
Never get surprised by kb-siegerland.de's certificate expiring
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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