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 lyse-konsern.org

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
lysekonsern.no
Valid from
Jun 15, 2026
Valid until
Sep 13, 2026 (34 days remaining)
Public key
RSA 2048-bit
Serial
054060847BB0EC58BF5AF6DDA2C7115CDBEB
SHA-256 fingerprint
F5:FD:BE:D0:04:4F:2A:83:C3:78:B1:9C:E8:1F:C5:FB:61:3A:86:95:5A:A4:88:A3:B7:0E:34:21:BC:F6:28:E4
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
lysekonsern.no, www.lysekonsern.no

Certificate Authority Authorization (CAA)

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

Never get surprised by lyse-konsern.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch lyse-konsern.org 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.