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 b-stick.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
b-stick.dk
Valid from
Jul 31, 2026
Valid until
Oct 29, 2026 (49 days remaining)
Public key
RSA 2048-bit
Serial
0670957C17AF094AA7B3885860C372B1108A
SHA-256 fingerprint
44:DC:33:19:F6:96:40:E8:D1:AA:ED:A2:22:D1:7A:50:DE:90:30:A1:D0:C3:F5:FA:95:78:69:B8:9B:D2:64:6F
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
b-stick.dk, www.b-stick.dk

Certificate Authority Authorization (CAA)

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

Never get surprised by b-stick.dk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch b-stick.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.