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 mk-so.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.mk-so.de
- Valid from
- Feb 24, 2026
- Valid until
- Mar 10, 2027 (215 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 46C691BDB19E016CEA2A44833CBB8384
- SHA-256 fingerprint
- C0:0E:38:EE:A7:CE:1B:FF:87:01:8C:8C:B3:8C:B1:E1:69:43:01:56:EA:DD:CE:FB:60:BC:1E:CE:B7:25:47:FC
- 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.
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This is today's certificate. Turn on monitoring and we'll watch mk-so.de continuously, notifying you the moment anything moves across all three signals:
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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