SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sudoku-space.de
SSL/TLS Certificate
SSL/TLS Certificate for sudoku-space.de
Self-signed- Issued by (CA)
- Markus Weigel Internetdienstleistungen
- Subject
- www.liam3.de
- Valid from
- Jul 26, 2011
- Valid until
- Jul 23, 2021 (expired 1844 days ago)
- Public key
- RSA 1024-bit
- Serial
- D88CCA1DBA3E956D
- SHA-256 fingerprint
- 4D:0C:14:7A:DD:57:29:01:21:5A:65:53:A4:2F:B7:85:3F:3E:BC:90:30:2F:22:D4:E8:E4:8A:83:0C:52:AC:86
- Chain
- www.liam3.de
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
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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