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 shikata-akiko.com

Valid
Issued by (CA)
Japan Registry Services Co., Ltd.
Subject
shikata-akiko.com
Valid from
Nov 5, 2025
Valid until
Nov 30, 2026 (42 days remaining)
Public key
RSA 2048-bit
Serial
7CACB900655A0BDF0E230B263FF840E1
SHA-256 fingerprint
08:72:A9:08:78:21:14:B7:13:AC:E7:CB:95:7A:C8:16:F4:7E:29:0C:BB:4A:B6:3F:62:E2:75:1C:D2:E3:41:A8
Chain
JPRS Domain Validation Authority - G4
Subject Alternative Names (2)
shikata-akiko.com, www.shikata-akiko.com

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 27, 2026.

Never get surprised by shikata-akiko.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch shikata-akiko.com 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.