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 hex-group.com

Valid
Issued by (CA)
Let's Encrypt
Subject
www.heksagon.com
Valid from
Jun 30, 2026
Valid until
Sep 28, 2026 (66 days remaining)
Public key
EC 256-bit
Serial
0535447889C56459B12E640B1682CE855AE4
SHA-256 fingerprint
67:5A:54:C4:1F:D5:6E:26:35:86:1B:7A:CB:CC:38:90:69:8D:A9:7D:59:E7:42:2B:AE:12:2F:CE:EE:8D:98:EB
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (4)
heksagon.com, hex-group.com, www.heksagon.com, www.hex-group.com

Certificate Authority Authorization (CAA)

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

Never get surprised by hex-group.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch hex-group.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.