SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kl-net.dk
SSL/TLS Certificate
SSL/TLS Certificate for kl-net.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.kl-net.dk
- Valid from
- Aug 15, 2026
- Valid until
- Nov 13, 2026 (34 days remaining)
- Public key
- EC 256-bit
- Serial
- 05390C01D5D16341CD075C61F2CF26C36A08
- SHA-256 fingerprint
- AC:F3:BF:8F:77:E5:B6:98:90:69:46:A5:4C:5D:35:23:02:97:5E:3B:D6:41:24:6E:05:59:5F:A6:6A:1B:E7:65
- Chain
- YE2 → 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.
This certificate has been served since Sep 20, 2026.
Never get surprised by kl-net.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kl-net.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.
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