SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
knoten-loesen.com
SSL/TLS Certificate
SSL/TLS Certificate for knoten-loesen.com
Self-signed- Issued by (CA)
- Default SSL Certificate
- Subject
- Default SSL Certificate
- Valid from
- Dec 19, 2018
- Valid until
- Dec 18, 2021 (expired 1779 days ago)
- Public key
- RSA 4096-bit
- Serial
- 5C1ACEAA000E73A8
- SHA-256 fingerprint
- 2B:EC:71:71:AD:10:2C:3B:39:33:6A:38:58:C8:CC:7A:D0:07:A9:B0:CA:65:07:B5:C6:45:71:C6:07:71:81:F8
- Chain
- Default SSL Certificate
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 Oct 7, 2026.
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This is today's certificate. Turn on monitoring and we'll watch knoten-loesen.com continuously, notifying you the moment anything moves across all three signals:
Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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