SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jensen-koel.dk
SSL/TLS Certificate
SSL/TLS Certificate for jensen-koel.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jensen-koel.dk
- Valid from
- Jun 25, 2026
- Valid until
- Sep 23, 2026 (52 days remaining)
- Public key
- EC 256-bit
- Serial
- 05C11F252E6D19723F127600B7DED191FBB1
- SHA-256 fingerprint
- AD:B8:43:F8:65:21:A6:64:74:E2:C2:E1:A1:3E:17:9E:BA:F9:4C:A0:2E:19:31:59:4C:CD:06:31:89:99:42:DC
- 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.
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This is today's certificate. Turn on monitoring and we'll watch jensen-koel.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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