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 spang-hanssen.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
*.spang-hanssen.dk
Valid from
Oct 13, 2026
Valid until
Jan 11, 2027 (82 days remaining)
Public key
EC 256-bit
Serial
058607B5DA7320A36035BD915EA58ECD42A6
SHA-256 fingerprint
4C:39:82:EC:0C:DF:2B:9A:27:93:2D:60:F6:01:F4:49:6B:D6:C5:BD:AC:DC:A9:7F:20:97:E1:D0:0A:01:2F:8B
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.spang-hanssen.dk, spang-hanssen.dk

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 Oct 5, 2026.

Never get surprised by spang-hanssen.dk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch spang-hanssen.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.