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 jujiya-yamagataten.com

Untrusted chain
Issued by (CA)
Let's Encrypt
Subject
jujiya-yamagataten.com
Valid from
Jun 16, 2026
Valid until
Sep 14, 2026 (31 days remaining)
Public key
EC 256-bit
Serial
06A8DB8827FF1BF6BEF39D7CAE27E2791750
SHA-256 fingerprint
DA:F9:A8:04:D3:7B:E0:92:9C:FE:04:DE:2C:8C:36:CA:EF:6C:5C:2B:1E:9B:3D:5D:E6:64:3C:25:C0:E7:70:55
Chain
YE1
Subject Alternative Names (1)
jujiya-yamagataten.com

Certificate Authority Authorization (CAA)

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

Never get surprised by jujiya-yamagataten.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch jujiya-yamagataten.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.