SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
foss-fabriker.dk
SSL/TLS Certificate
SSL/TLS Certificate for foss-fabriker.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.foss-fabriker.dk
- Valid from
- Jun 26, 2026
- Valid until
- Sep 24, 2026 (48 days remaining)
- Public key
- EC 256-bit
- Serial
- 050E403CAC0942C5EFF471E53DC3E9D72CB7
- SHA-256 fingerprint
- 6D:E3:04:B8:2B:A8:24:45:D4:D1:6B:46:18:E6:71:C9:22:58:C6:4B:F6:17:08:62:15:1C:C7:F2:55:20:90:E2
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by foss-fabriker.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch foss-fabriker.dk 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.