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 gudbrand.no

Valid
Issued by (CA)
Let's Encrypt
Subject
gudbrand.no
Valid from
Aug 17, 2026
Valid until
Nov 15, 2026 (45 days remaining)
Public key
RSA 2048-bit
Serial
05F1DC8870AF52E8AEC40B5B7524083D8968
SHA-256 fingerprint
8C:D6:94:29:76:2E:F7:9E:7C:38:6A:6D:89:60:90:2C:C8:CF:80:E8:7F:33:AD:49:28:04:CC:E3:8D:F7:8B:75
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
gudbrand.no, www.gudbrand.no

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

This certificate has been served since Sep 28, 2026.

Never get surprised by gudbrand.no's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gudbrand.no 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.