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 kamui.jp

Expired
Issued by (CA)
Japan Registry Services Co., Ltd.
Subject
kamui.jp
Valid from
Jun 29, 2023
Valid until
Jun 30, 2024 (expired 769 days ago)
Public key
RSA 2048-bit
Serial
065C7DA2466B44E4DB3720B581BEBF5F
SHA-256 fingerprint
DB:A0:14:AF:A0:D6:CD:F7:66:AA:A8:26:0C:43:8A:90:A2:73:9E:B6:A1:0D:09:CF:6A:E5:3D:6F:00:4F:52:50
Chain
JPRS Domain Validation Authority - G4
Subject Alternative Names (1)
kamui.jp

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 Jul 29, 2026.

Never get surprised by kamui.jp's certificate expiring

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