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 safe-japan.com

Valid
Issued by (CA)
Let's Encrypt
Subject
safe-japan.com
Valid from
Jun 30, 2026
Valid until
Sep 28, 2026 (65 days remaining)
Public key
RSA 2048-bit
Serial
05BEBE47891D6FD5820FFA50E578EEEA33FF
SHA-256 fingerprint
C8:91:03:5A:C0:D8:C3:7A:33:04:E2:18:25:14:47:B2:88:A9:21:F6:33:D3:34:37:03:8A:BC:8A:53:43:9C:67
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
safe-japan.com, www.safe-japan.com

Certificate Authority Authorization (CAA)

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

Never get surprised by safe-japan.com's certificate expiring

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