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 nardo-gmbh.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
www.nardo-gmbh.ch
Valid from
Sep 13, 2026
Valid until
Dec 12, 2026 (27 days remaining)
Public key
RSA 4096-bit
Serial
06D6D4FE554EB03B0A96681049371D0B6F95
SHA-256 fingerprint
81:13:D0:A4:7E:50:7D:0F:9F:D8:FA:F5:D2:24:62:2A:19:87:92:4E:BF:DA:B5:C2:0B:D5:81:DE:A5:06:44:52
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
nardo-gmbh.ch, www.nardo-gmbh.ch

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 Nov 10, 2026.

Never get surprised by nardo-gmbh.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch nardo-gmbh.ch 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.