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 dubordrefrigeration.ca

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
www.dubordrefrigeration.ca
Valid from
Mar 11, 2026
Valid until
Apr 12, 2027 (210 days remaining)
Public key
RSA 4096-bit
Serial
79792BBE4E1C535632F9EFEB
SHA-256 fingerprint
1A:68:76:D1:E8:1E:EB:C6:79:DB:91:0F:2A:33:A5:F9:19:6F:41:24:FE:2B:90:E6:94:36:1B:3C:60:87:0D:31
Chain
GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Subject Alternative Names (2)
dubordrefrigeration.ca, www.dubordrefrigeration.ca

Certificate Authority Authorization (CAA)

The serving CA (GlobalSign nv-sa) is authorized by this domain's CAA records (globalsign.com, letsencrypt.org, pki.goog, sectigo.com).

This certificate has been served since Aug 31, 2026.

Never get surprised by dubordrefrigeration.ca's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dubordrefrigeration.ca 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.