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 nydahl-jensen.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
nydahl-jensen.dk
Valid from
Nov 3, 2026
Valid until
Feb 1, 2027 (84 days remaining)
Public key
EC 256-bit
Serial
0622290599BE3F4134273A4235ECB98357FC
SHA-256 fingerprint
62:C8:5C:C8:A1:73:01:78:06:77:A4:6F:7C:14:7B:15:80:93:DD:44:BB:11:7F:32:63:35:D0:17:BE:DC:54:2C
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
nydahl-jensen.dk, www.nydahl-jensen.dk

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 30, 2026.

Never get surprised by nydahl-jensen.dk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch nydahl-jensen.dk continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.