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 lei-kode.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
lei-kode.dk
Valid from
Jul 13, 2026
Valid until
Oct 11, 2026 (66 days remaining)
Public key
RSA 4096-bit
Serial
0529F1FBC78F608F585115A95F7BD8E9DA28
SHA-256 fingerprint
32:7F:3D:4D:04:23:77:D0:B8:DB:AE:48:C1:DE:92:A9:E5:DB:CC:0F:13:25:65:B0:28:CF:2B:B9:68:C5:4B:43
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
lei-kode.dk, www.lei-kode.dk

Certificate Authority Authorization (CAA)

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

Never get surprised by lei-kode.dk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch lei-kode.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.