SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
korta-m.de
SSL/TLS Certificate
SSL/TLS Certificate for korta-m.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.korta-m.de
- Valid from
- Jul 15, 2026
- Valid until
- Jan 25, 2027 (98 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 77483C507E49D8F93F829782EBBA0B2E
- SHA-256 fingerprint
- 28:30:11:CA:B6:60:64:7F:B2:C6:25:C4:4C:DE:FC:72:94:C7:09:01:81:99:65:F0:90:58:09:C1:94:9B:DE:95
- 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 17, 2026.
Never get surprised by korta-m.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch korta-m.de continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.