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 gunnar-inc.com

Expired
Issued by (CA)
cPanel, Inc.
Subject
gunnar-inc.com
Valid from
Mar 18, 2024
Valid until
Jun 16, 2024 (expired 868 days ago)
Public key
RSA 2048-bit
Serial
EF5B3AC545E9AEFBCF03344D868E1D59
SHA-256 fingerprint
24:00:BA:AC:53:0F:E5:8D:BA:18:27:E0:D7:11:53:90:B8:16:A1:7E:3E:DC:66:25:04:4B:DE:78:B7:C1:88:85
Chain
cPanel, Inc. Certification Authority → COMODO RSA Certification Authority
Subject Alternative Names (8)
cpanel.gunnar-inc.com, cpcalendars.gunnar-inc.com, cpcontacts.gunnar-inc.com, gunnar-inc.com, mail.gunnar-inc.com, webdisk.gunnar-inc.com, webmail.gunnar-inc.com, www.gunnar-inc.com

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 Oct 22, 2026.

Never get surprised by gunnar-inc.com's certificate expiring

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