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 petscanada.org

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
*.petscanada.org
Valid from
Feb 20, 2026
Valid until
Mar 24, 2027 (138 days remaining)
Public key
RSA 4096-bit
Serial
40DF6D9F2DC10A19A313288C
SHA-256 fingerprint
16:A1:5D:BE:C9:B9:F7:0D:88:AC:6F:8F:36:5C:93:E8:7C:B2:CB:A4:90:0C:58:8D:5F:97:05:AD:F1:48:C9:3D
Chain
GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Subject Alternative Names (2)
*.petscanada.org, petscanada.org

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).

Never get surprised by petscanada.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch petscanada.org 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.