SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
denix-deutschland.de
SSL/TLS Certificate
SSL/TLS Certificate for denix-deutschland.de
Self-signed- Issued by (CA)
- flexo
- Subject
- flexo
- Valid from
- May 14, 2012
- Valid until
- May 12, 2022 (expired 1647 days ago)
- Public key
- RSA 2048-bit
- Serial
- E96E4E8543BC385D
- SHA-256 fingerprint
- 95:8C:BE:6C:16:35:40:68:0F:75:F7:20:B5:44:F8:1E:5E:36:03:5B:AF:00:EF:C4:4F:02:55:5B:8F:73:89:26
- Chain
- flexo
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by denix-deutschland.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch denix-deutschland.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.