SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nabu-kleve.de
SSL/TLS Certificate
SSL/TLS Certificate for nabu-kleve.de
Expiring soon- Issued by (CA)
- Sectigo Limited
- Subject
- *.nabu-kleve.de
- Valid from
- Nov 17, 2025
- Valid until
- Dec 1, 2026 (21 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1F5C76051A42E73EE2547E55848AA6D2
- SHA-256 fingerprint
- A6:86:0E:73:3C:F9:18:41:A1:80:F1:34:4B:0B:96:35:C6:7B:02:E6:EE:FA:FF:4C:9C:92:BA:D6:37:36:01:DF
- 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 11, 2026.
Never get surprised by nabu-kleve.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nabu-kleve.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.