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 werner-furrer.com

Valid
Issued by (CA)
Let's Encrypt
Subject
www.werner-furrer.com
Valid from
Aug 1, 2026
Valid until
Oct 30, 2026 (34 days remaining)
Public key
EC 384-bit
Serial
062A2788C4D3BEC3EEE3E0E13A96C1272433
SHA-256 fingerprint
C2:60:39:7E:8E:5C:BD:59:4C:CE:C4:C8:CF:38:95:62:4E:A9:97:5B:35:03:63:76:11:DA:B9:90:56:BD:54:66
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
werner-furrer.com, www.werner-furrer.com

Certificate Authority Authorization (CAA)

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

Never get surprised by werner-furrer.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch werner-furrer.com 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.