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 nissha-comms.co.jp

Valid
Issued by (CA)
Japan Registry Services Co., Ltd.
Subject
www.nissha-comms.co.jp
Valid from
Sep 15, 2025
Valid until
Sep 30, 2026 (46 days remaining)
Public key
RSA 2048-bit
Serial
3740867E7A53620A1DEB17B067EB3580
SHA-256 fingerprint
13:4B:92:53:AF:3A:B3:38:2E:F9:24:DB:5D:0D:6E:82:D5:49:04:4D:CF:86:8C:EC:7A:F9:5A:F7:16:F4:ED:3D
Chain
JPRS Domain Validation Authority - G4
Subject Alternative Names (2)
nissha-comms.co.jp, www.nissha-comms.co.jp

Certificate Authority Authorization (CAA)

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

Never get surprised by nissha-comms.co.jp's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch nissha-comms.co.jp 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.