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 burkhalter-wassertechnik.com

Expired
Issued by (CA)
Let's Encrypt
Subject
burkhalter-h2o.ch
Valid from
Nov 17, 2020
Valid until
Feb 15, 2021 (expired 2056 days ago)
Public key
RSA 2048-bit
Serial
03636ED28272154A3A1BEF99127A835EFAAC
SHA-256 fingerprint
9B:DA:8D:36:14:22:09:5E:1E:73:4D:3E:19:89:FA:EE:9A:B5:BC:78:1A:0C:4A:05:BB:04:76:D3:D4:5B:5F:09
Chain
Let's Encrypt Authority X3
Subject Alternative Names (14)
burkhalter-h20.ch, burkhalter-h2o.ch, burkhalter-h2o.com, burkhalter-partner.ch, traitementdeseaux.ch, wassertechnik.ch, watertreatment.ch, www.burkhalter-h20.ch, www.burkhalter-h2o.ch, www.burkhalter-h2o.com, www.burkhalter-partner.ch, www.traitementdeseaux.ch, www.wassertechnik.ch, www.watertreatment.ch

Certificate Authority Authorization (CAA)

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

Never get surprised by burkhalter-wassertechnik.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch burkhalter-wassertechnik.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.