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 ben-kyou-dou.co.jp

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
www.ben-kyou-dou.co.jp
Valid from
Jan 22, 2026
Valid until
Feb 23, 2027 (102 days remaining)
Public key
RSA 2048-bit
Serial
7F9389D767AE999ED3B3EFFF
SHA-256 fingerprint
05:3A:9D:17:9A:66:62:5F:F7:9B:E1:85:EE:F8:5C:7C:10:97:17:51:49:1E:D2:74:19:1F:48:C8:52:51:DB:44
Chain
GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Subject Alternative Names (2)
ben-kyou-dou.co.jp, www.ben-kyou-dou.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 ben-kyou-dou.co.jp's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ben-kyou-dou.co.jp 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.