SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for efuture.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
efuture.dk
Valid from
Aug 22, 2026
Valid until
Nov 20, 2026 (72 days remaining)
Public key
EC 256-bit
Serial
05E9FA9494E6993AADC57B8E48C4470F13AF
SHA-256 fingerprint
C5:88:86:DA:C2:F0:6F:50:90:1D:F5:9F:B5:E8:19:04:FC:72:8D:CA:EB:0B:C3:08:59:0D:3E:30:F9:9B:3A:64
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
efuture.dk, www.efuture.dk

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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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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