SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
casa-net.org
SSL/TLS Certificate
SSL/TLS Certificate for casa-net.org
Self-signed- Issued by (CA)
- merkur.kreativmedia.ch
- Subject
- merkur.kreativmedia.ch
- Valid from
- May 6, 2026
- Valid until
- May 6, 2027 (239 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 5DF44AC2D0F239B0E519770A5881CEF96767DE0B
- SHA-256 fingerprint
- E7:A2:53:B3:72:33:B0:36:55:CE:5B:D5:6F:F8:FA:B6:D1:E6:69:DB:E8:7C:E9:63:A5:98:EB:59:B4:8E:C1:FD
- Chain
- merkur.kreativmedia.ch
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 Aug 25, 2026.
Never get surprised by casa-net.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch casa-net.org 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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.