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 e-kenshin.net

Self-signed
Issued by (CA)
SomeOrganization
Subject
ik1-324-22054.vs.sakura.ne.jp
Valid from
Apr 9, 2020
Valid until
Apr 9, 2021 (expired 2034 days ago)
Public key
RSA 2048-bit
Serial
6F74
SHA-256 fingerprint
FB:45:E8:99:69:6D:D1:13:6B:69:AD:44:33:78:5F:26:5E:8B:91:4B:C8:5E:3C:65:78:8F:11:38:4F:3C:19:8F
Chain
—

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 Aug 29, 2026.

Never get surprised by e-kenshin.net's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch e-kenshin.net 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.